HTML basics (2) forms, image hotspots, web page partitioning and splicing

1. Form

id cannot be repeated; name can be repeated; get submission has a length limit, and the encoded The content is visible in the address bar, there is no length limit for post submission, and the content is not visible after encoding.

1. Text input

Text box

Note: Setting the value above means setting the default value

Password box

Text area

Hidden field

2. Button

Submit button Click to go to the address of the submission server in the form

Note: The value set above represents the text displayed above during runtime.

Reset button

Ordinary button

Image button

Attachment:

Disabled makes the button invalid; enable makes it available.

3. Select input

Radio button group The value of name is used for grouping; the value value is invisible and is submitted to the program; checked, set default options.

Note: The radio button group cannot be canceled after being selected.

Checkbox group

Note: checked="checked" means it is checked as soon as it comes up, and the check box can be selected and cancelled.

File upload

   The label defines the label (marker) for the input element.

The label element does not present any special effects to the user. However, it improves usability for mouse users. This control is triggered if you click on the text inside the label element. That is to say, when the user selects the label, the browser will automatically turn the focus to the form control related to the label.

& lt; label & gt; The fors of the label should be the same as the ID attribute of the relevant element.

Drop-down list box

--size=1, it is a menu; >1, it is a list. multiple means multiple selection.

                                                                                                                                                                                            & lt; option value = "value" selectd = "select" & gt; Content 2 & lt;/option & gt;-selected, set as the default

Content 3

In summary, the HTML program displays:

<span style="color: #008080;"> 1</span> <span style="color: #0000ff;"><!</span><span style="color: #ff00ff;">DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 2</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">html </span><span style="color: #ff0000;">xmlns</span><span style="color: #0000ff;">="http://www.w3.org/1999/xhtml"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 3</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 4</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">meta </span><span style="color: #ff0000;">http-equiv</span><span style="color: #0000ff;">="Content-Type"</span><span style="color: #ff0000;"> content</span><span style="color: #0000ff;">="text/html; charset=utf-8"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;"> 5</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>无标题文档<span style="color: #0000ff;"></</span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 6</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 7</span> 
<span style="color: #008080;"> 8</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">body </span><span style="color: #ff0000;">background</span><span style="color: #0000ff;">="22.jpg"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 9</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">10</span> 账号：<span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="12345"</span><span style="color: #ff0000;"> disabled</span><span style="color: #0000ff;">="disabled"</span> <span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">11</span> 密码：<span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="password"</span> <span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">12</span> 说说：<span style="color: #0000ff;"><</span><span style="color: #800000;">textarea </span><span style="color: #ff0000;">cols</span><span style="color: #0000ff;">="140"</span><span style="color: #ff0000;"> rows</span><span style="color: #0000ff;">="8"</span><span style="color: #0000ff;">></</span><span style="color: #800000;">textarea</span><span style="color: #0000ff;">><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">13</span> 请问：中华人民共和国成立于那一年？<span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;">14</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="submit"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="提交"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;">15</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="hidden"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="1949"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;">16</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="reset"</span> <span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">17</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="button"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="登录"</span> <span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">18</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="image"</span><span style="color: #ff0000;"> src</span><span style="color: #0000ff;">="55.jpg"</span> <span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">19</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="radio"</span><span style="color: #ff0000;"> name</span><span style="color: #0000ff;">="sex"</span> <span style="color: #0000ff;">/></span>男<span style="color: #0000ff;"><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">20</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="radio"</span><span style="color: #ff0000;"> name</span><span style="color: #0000ff;">="sex"</span> <span style="color: #0000ff;">/></span>女<span style="color: #0000ff;"><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">21</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="checkbox"</span><span style="color: #ff0000;"> checked</span><span style="color: #0000ff;">="checked"</span> <span style="color: #0000ff;">/></span>可乐<span style="color: #0000ff;"><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">22</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="checkbox"</span> <span style="color: #0000ff;">/></span>鸡腿<span style="color: #0000ff;"><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">23</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="file"</span> <span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/><</span><span style="color: #800000;">br </span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">24</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">select </span><span style="color: #ff0000;">size</span><span style="color: #0000ff;">="1"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">25</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="11"</span><span style="color: #0000ff;">></span>可口可乐<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">26</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="22"</span><span style="color: #0000ff;">></span>雪碧<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">27</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="33"</span><span style="color: #ff0000;"> selected</span><span style="color: #0000ff;">="selected"</span><span style="color: #0000ff;">></span>芬达<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">28</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">select</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">29</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">30</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">body</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">31</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">html</span><span style="color: #0000ff;">></span>

View Code

The running result shows:

Example analysis: Make mailbox interface program display

<span style="color: #008080;"> 1</span> <span style="color: #0000ff;"><!</span><span style="color: #ff00ff;">DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 2</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">html </span><span style="color: #ff0000;">xmlns</span><span style="color: #0000ff;">="http://www.w3.org/1999/xhtml"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 3</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 4</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">meta </span><span style="color: #ff0000;">http-equiv</span><span style="color: #0000ff;">="Content-Type"</span><span style="color: #ff0000;"> content</span><span style="color: #0000ff;">="text/html; charset=utf-8"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;"> 5</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>无标题文档<span style="color: #0000ff;"></</span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 6</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 7</span> 
<span style="color: #008080;"> 8</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">body </span><span style="color: #ff0000;">background</span><span style="color: #0000ff;">="11.jpg"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 9</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">font </span><span style="color: #ff0000;">face</span><span style="color: #0000ff;">="华文隶书"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">10</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">table </span><span style="color: #ff0000;">align</span><span style="color: #0000ff;">="center"</span><span style="color: #ff0000;"> width</span><span style="color: #0000ff;">="600"</span><span style="color: #ff0000;"> height</span><span style="color: #0000ff;">="600"</span><span style="color: #ff0000;"> border</span><span style="color: #0000ff;">="1"</span><span style="color: #ff0000;"> cellpadding</span><span style="color: #0000ff;">="0"</span><span style="color: #ff0000;"> cellspacing</span><span style="color: #0000ff;">="0"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">11</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">12</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td </span><span style="color: #ff0000;">width</span><span style="color: #0000ff;">="150"</span><span style="color: #0000ff;">></span><span style="color: #ff0000;">   </span>邮箱：<span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">13</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span> <span style="color: #0000ff;">/></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">14</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">15</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">16</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">17</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td </span><span style="color: #ff0000;">valign</span><span style="color: #0000ff;">="middle"</span><span style="color: #0000ff;">><</span><span style="color: #800000;">font </span><span style="color: #ff0000;">color</span><span style="color: #0000ff;">="#999999"</span><span style="color: #0000ff;">></span>需要通过邮箱激活账户，不支持sohu，21cn，sogou的邮箱<span style="color: #0000ff;"></</span><span style="color: #800000;">font</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">18</span> 
<span style="color: #008080;">19</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">20</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">21</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span><span style="color: #ff0000;">   </span>登录用户名：<span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">22</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span> <span style="color: #0000ff;">/></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">23</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">24</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">25</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">26</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td </span><span style="color: #ff0000;">valign</span><span style="color: #0000ff;">="middle"</span><span style="color: #0000ff;">><</span><span style="color: #800000;">font </span><span style="color: #ff0000;">color</span><span style="color: #0000ff;">="#999999"</span><span style="color: #0000ff;">></span>仅在登录时使用，字符数不少于4个<span style="color: #0000ff;"></</span><span style="color: #800000;">font</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">27</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">28</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">29</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span><span style="color: #ff0000;">   </span>显示名称：<span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">30</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span> <span style="color: #0000ff;">/></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">31</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">32</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">33</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">34</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">font </span><span style="color: #ff0000;">color</span><span style="color: #0000ff;">="#999999"</span><span style="color: #0000ff;">></span>即昵称，字符数不少于2个<span style="color: #0000ff;"></</span><span style="color: #800000;">font</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">35</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">36</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">37</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span><span style="color: #ff0000;">   </span>密码：<span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">38</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="password"</span> <span style="color: #0000ff;">/></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">39</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">40</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">41</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span><span style="color: #ff0000;">   </span>确认密码：<span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">42</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="password"</span> <span style="color: #0000ff;">/></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">43</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">44</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">45</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">46</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">font </span><span style="color: #ff0000;">color</span><span style="color: #0000ff;">="#999999"</span><span style="color: #0000ff;">></span>至少8位，必须包含字母、数字、特殊字符<span style="color: #0000ff;"></</span><span style="color: #800000;">font</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">47</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">48</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">49</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span><span style="color: #ff0000;">   </span>性别：<span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">50</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">><</span><span style="color: #800000;">select </span><span style="color: #ff0000;">size</span><span style="color: #0000ff;">="1"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">51</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="1"</span><span style="color: #ff0000;"> selected</span><span style="color: #0000ff;">="selected"</span><span style="color: #0000ff;">></span>男<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">52</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="2"</span><span style="color: #0000ff;">></span>女<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">53</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">select</span><span style="color: #0000ff;">></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">54</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">55</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">56</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">57</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span><span style="color: #ff0000;">   </span>喜好：<span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">58</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">><</span><span style="color: #800000;">select </span><span style="color: #ff0000;">size</span><span style="color: #0000ff;">="1"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">59</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="1"</span><span style="color: #0000ff;">></span>打游戏<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">60</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="2"</span><span style="color: #0000ff;">></span>打篮球<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">61</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="3"</span><span style="color: #0000ff;">></span>看电影<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">62</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="4"</span><span style="color: #ff0000;"> selected</span><span style="color: #0000ff;">="selected"</span><span style="color: #0000ff;">></span>听音乐<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">63</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">option </span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="5"</span><span style="color: #0000ff;">></span>旅游<span style="color: #0000ff;"></</span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">64</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">select</span><span style="color: #0000ff;">></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">65</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">66</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">67</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">68</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">69</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">td</span><span style="color: #0000ff;">><</span><span style="color: #800000;">form</span><span style="color: #0000ff;">><</span><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="submit"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="注册"</span> <span style="color: #0000ff;">/></</span><span style="color: #800000;">form</span><span style="color: #0000ff;">></</span><span style="color: #800000;">td</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">70</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">tr</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">71</span> 
<span style="color: #008080;">72</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">table</span><span style="color: #0000ff;">></span> 
<span style="color: #008080;">73</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">font</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">74</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">body</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">75</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">html</span><span style="color: #0000ff;">></span>

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The running result shows:

2. Picture hotspots

Plan an area on the picture, you can make a hyperlink, and directly click on the picture area to complete the jump effect.

Example:

<span style="color: #008080;"> 1</span> <span style="color: #0000ff;"><!</span><span style="color: #ff00ff;">DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 2</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">html </span><span style="color: #ff0000;">xmlns</span><span style="color: #0000ff;">="http://www.w3.org/1999/xhtml"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 3</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 4</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">meta </span><span style="color: #ff0000;">http-equiv</span><span style="color: #0000ff;">="Content-Type"</span><span style="color: #ff0000;"> content</span><span style="color: #0000ff;">="text/html; charset=utf-8"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;"> 5</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>无标题文档<span style="color: #0000ff;"></</span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 6</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 7</span> 
<span style="color: #008080;"> 8</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">body</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 9</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">img </span><span style="color: #ff0000;">src</span><span style="color: #0000ff;">="a006.jpg"</span><span style="color: #ff0000;"> usemap</span><span style="color: #0000ff;">="ditu"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;">10</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">map </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="ditu"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">11</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">area </span><span style="color: #ff0000;">shape</span><span style="color: #0000ff;">="rect"</span><span style="color: #ff0000;"> coords</span><span style="color: #0000ff;">="0,0,50,50"</span><span style="color: #ff0000;"> href</span><span style="color: #0000ff;">="http://www.baidu.com"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;">12</span> <span style="color: #0000ff;"><</span><span style="color: #800000;">area </span><span style="color: #ff0000;">shape</span><span style="color: #0000ff;">="circle"</span><span style="color: #ff0000;"> coords</span><span style="color: #0000ff;">="265,118,80"</span><span style="color: #ff0000;"> href</span><span style="color: #0000ff;">="http://qq.com"</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;">13</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">map</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">14</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">body</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">15</span> <span style="color: #0000ff;"></</span><span style="color: #800000;">html</span><span style="color: #0000ff;">></span>

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Design interface: When running the rectangular and circular areas, the mouse will turn into a small hand shape, indicating that there is a link.

3. Web page partitioning and splicing

Dividing: In a web page, plan an area to display the content of another web page.

Example:

Splicing: Within a network page, multiple page windows are planned and displayed in the form of table splicing. (You can imagine the surveillance screen, with multiple screens displayed at the same time)

Example: