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Introduction to HTML forms and the use of internal tags in forms

高洛峰Original: 2017-03-06 15:40:301379browse

This article mainly introduces the HTML form and the use of internal tags in the form. Friends who need it can refer to it.

The code is as follows:

<html> 
<head> 
<title> form表单的使用 </title> 
<!-- 
标签名称：form 表单标签 
属性：action:提交的去向,目标地址的url 
method:设置提交请求的方式，get和post；默认为get 
get和post提交有什么区别？------------------------ 
get传输：将内容信息放在地址栏传输，而且长度限制在1k,而且安全性不好。 
post传输：将内容房子body信息中传输。没有长度限制。 
子标签： 
input标签：需要提交其中的value，必须有一个name属性。 
属性：type：password 等 
//------------ 
通过下面的实例的演示，发现在某些情况下可以用form去做链接，而且做链接的同时还能提交数据到 
这个目标的地址文件上。 
fieldset标签：定义域 
legend标签：定义域的标题 
--> 
</head> 
<body> 
<fieldset> 
<legend>form表单标签，子标签实例：</legend> 
<form action="01列表.html" method="get"> 
<table border="1px" width="800px"> 
<tr> 
列表标签：

<select name="cars"> 
<option value="volvo">Volvo</option> 
<option value="saab">Saab</option> 
<option value="fiat" selected="selected">Fiat</option> 
<option value="audi">Audi</option> 
</select>

</tr> 
<tr> 
复选框实例：

我喜欢自行车： 
<input type="checkbox" name="Bike"> 

我喜欢汽车： 
<input type="checkbox" name="Car">

</tr> 
<tr> 
单选按钮：

男性： 
<input type="radio" checked="checked" name="Sex" value="male"> 

女性： 
<input type="radio" name="Sex" value="female"> 
</form> 
<p>当用户点击一个单选按钮时，该按钮会变为选中状态，其他所有按钮会变为非选中状态。</p> 
</tr> 
<tr> 
文本域：

<textarea rows="10" cols="30">文本域标签的使用</textarea> 
</tr> 
<tr> 
</tr> 
<tr> 
</tr> 
<tr> 
<td>账号：</td> 
<td> 
<input name="userid"> 
</td> 
</tr> 
<tr> 
<td>密码：</td> 
<td> 
<input name="pwd"> 
</td> 
</tr> 
<tr> 
<td> 
<input type="submit" value="确认提交"/> 
</td> 
<td> 
<input type="reset" value="重置"/> 
</td> 
</tr> 
</table> 
</form> 
</fieldset> 
</body> 
</html>

As long as there are name and Tags with value attributes can be placed inside the form, and the data of these tags can also be submitted to another URL.

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