HTML 表單輸入類型

; HTML中的標籤用於設計Web表單中的交互控件，以接受來自用戶端的資料。根據所使用的用戶代理和設備，可以使用多種類型的控制小部件和輸入資料。 標籤是所有 HTML 中使用的最重要的元素之一，因為它具有大量的屬性和輸入類型組合。在本主題中，我們將學習 HTML 表單輸入類型。

標籤是 HTML

的重要元素。元素。 中的「type」屬性標籤可以有多種類型，用於定義資訊字段，例如提供一個文字方塊。 的預設類型是標籤是文字。

HTML 中可用的「輸入」類型清單

Type	Description	Format	Example
button	Used to define a push button with the text of the button being the value of the value attribute.
checkbox	Used to define a checkbox allowing users to select/deselect its values.		Cricket Tennis Football
file	Used to define a file upload feature on the local system with the accept attribute being used to restrict the file types for upload.		<input type="file" name="newfile">
hidden	Used to hide a control whose value will be submitted on the server. There is an example in the next column, but it’s hidden!
image	A graphical submit button — displaying an image defined with the src attribute. The alt attribute displays if the image src is missing.
password	Used to define a single-line text field whose value is obscured, and it will also alert the user if the site is not secure
radio	Used to define a radio button and select a single value out of multiple.		Red Blue Green
reset	Used to define a button to reset the form values to its defaults.
submit	Used to define a submit button for the form.
text	Used to define a text field in the form.

List of the types of “input” available in HTML5

Type	Description	Format	Example
color	Used to define the color of the elements in an HTML form. It takes a hexadecimal input.
datetime-local	Used to define an element for date and time in the HTML form with opening a date picker or numeric wheels for the month, day, and year, when used in supported browsers.
email	Used to define a text field for email which has all the predefined validations done for checking an email.
date	Used to define a date picker for the HTML form.
number	Used to input numbers in the HTML form by displaying a spinner and adding default validation when used in supported browsers.
range	Used to define a range in the HTML form.
search	Used to define single-line text fields for entering search strings.
tel	Used to define a telephone entering field within an HTML form.
time	Used to define a field for entering time in HTML form
url	Used to define a text field for entering a url in the HTML form with all its validations being performed automatically.
week	Used to define a text field for entering the week-year number and a week number with no time zone.
datetime	Used to define a text field for entering a date and time (hour, minute, second, and fraction of a second) based on the UTC time zone.

屬性

以下部分提供了一個表格，列出了所有相關屬性以及簡要說明。該表後面是更詳細地描述每個屬性的列表，以及與它們關聯的輸入類型。下面更詳細地定義了大多數或所有輸入類型所共有的那些。

Attribute	Types
1.       accept	file
2.       alt	image
3.       autocomplete	all
4.       autofocus	all
5.       capture	file
6.       checked	radio, checkbox
7.       dirname	text, search
8.       disabled	all
9.       form	all
10.    formaction	image, submit
11.    formenctype	image, submit
12.    formmethod	image, submit
13.    formnovalidate	image, submit
14.    formtarget	image, submit
15.    height	image
16.    list	almost all
17.    max	numeric types
18.    maxlength	password, search, tel, text, url
19.    min	numeric types
20.    minlength	password, search, tel, text, url
21.    multiple	email, file
22.    name	all
23.    pattern	password, text, tel
24.    placeholder	password, search, tel, text, url
25.    readonly	almost all
26.    required	almost all
27.    size	email, password, tel, text
28.    src	image
29.    step	numeric types
30.    type	all
31.    value	all
32.    width	image

結論 – HTML 表單輸入類型

借助 HTML5 新的表單輸入類型，我們可以增強用戶體驗，打造面向未來的應用程序，並使開發人員的編碼變得更加容易。對這些新表單輸入類型的支援非常強大，尤其是在具有鍵盤的行動裝置中。這些輸入類型對於可用性而言是安全的，並且還為使用者提供了額外的實用程式。

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