Bootstrap4 表单控件

Bootstrap4 支持以下表单控件：

• input
• textarea
• checkbox
• radio
• select

Bootstrap Input

Bootstrap 支持所有的 HTML5 输入类型: text, password, datetime, datetime-local, date, month, time, week, number, email, url, search, tel, 以及 color。

注意：: 如果 input 的 type 属性未正确声明，输入框的样式将不会显示。

以下实例使用两个 input 元素，一个是 text，一个是 password ：

实例

<
div

class
=
"
form-group
"
>

<
label

for
=
"
usr
"
>
用户名:
label
>

<
input

type
=
"
text
"

class
=
"
form-control
"

id
=
"
usr
"
>

div
>

<
div

class
=
"
form-group
"
>

<
label

for
=
"
pwd
"
>
密码:
label
>

<
input

type
=
"
password
"

class
=
"
form-control
"

id
=
"
pwd
"
>

div
>

尝试一下 »

Bootstrap textarea

以下实例演示了 textarea 的样式。

实例

<
div

class
=
"
form-group
"
>

<
label

for
=
"
comment
"
>
评论:
label
>

<
textarea

class
=
"
form-control
"

rows
=
"
5
"

id
=
"
comment
"
>
textarea
>

div
>

尝试一下 »

Bootstrap 复选框(checkbox)

复选框用于让用户从一系列预设置的选项中进行选择，可以选一个或多个。

以下实例包含了三个选项。最后一个是禁用的：

实例

<
div

class
=
"
form-check
"
>

<
label

class
=
"
form-check-label
"
>

<
input

type
=
"
checkbox
"

class
=
"
form-check-input
"

value
=
"
"
>
Option 1
label
>

div
>

<
div

class
=
"
form-check
"
>

<
label

class
=
"
form-check-label
"
>

<
input

type
=
"
checkbox
"

class
=
"
form-check-input
"

value
=
"
"
>
Option 2
label
>

div
>

<
div

class
=
"
form-check disabled
"
>

<
label

class
=
"
form-check-label
"
>

<
input

type
=
"
checkbox
"

class
=
"
form-check-input
"

value
=
"
"

disabled
>
Option 3
label
>

div
>

尝试一下 »

使用 .form-check-inline 类可以让选项显示在同一行上：

实例

<
div

class
=
"
form-check form-check-inline
"
>

<
label

class
=
"
form-check-label
"
>

<
input

type
=
"
checkbox
"

class
=
"
form-check-input
"

value
=
"
"
>
Option 1
label
>

div
>

<
div

class
=
"
form-check form-check-inline
"
>

<
label

class
=
"
form-check-label
"
>

<
input

type
=
"
checkbox
"

class
=
"
form-check-input
"

value
=
"
"
>
Option 2
label
>

div
>

<
div

class
=
"
form-check form-check-inline disabled
"
>

<
label

class
=
"
form-check-label
"
>

<
input

type
=
"
checkbox
"

class
=
"
form-check-input
"

value
=
"
"

disabled
>
Option 3
label
>

div
>

尝试一下 »

Bootstrap 单选框(Radio)

单选框用于让用户从一系列预设置的选项中进行选择，只能选一个。

以下实例包含了三个选项。最后一个是禁用的：

实例

<
div

class
=
"
radio
"
>

<
label
>
<
input

type
=
"
radio
"

name
=
"
optradio
"
>
Option 1
label
>

div
>

<
div

class
=
"
radio
"
>

<
label
>
<
input

type
=
"
radio
"

name
=
"
optradio
"
>
Option 2
label
>

div
>

<
div

class
=
"
radio disabled
"
>

<
label
>
<
input

type
=
"
radio
"

name
=
"
optradio
"

disabled
>
Option 3
label
>

div
>

尝试一下 »

使用 .radio-inline 类可以让选项显示在同一行上：

实例

<
label

class
=
"
radio-inline
"
>
<
input

type
=
"
radio
"

name
=
"
optradio
"
>
Option 1
label
>

<
label

class
=
"
radio-inline
"
>
<
input

type
=
"
radio
"

name
=
"
optradio
"
>
Option 2
label
>

<
label

class
=
"
radio-inline
"
>
<
input

type
=
"
radio
"

name
=
"
optradio
"

disabled
>
Option 3
label
>

尝试一下 »

Bootstrap select 下拉菜单

当您想让用户从多个选项中进行选择，但是默认情况下只能选择一个选项时，则使用选择框。

以下实例包含了两个下拉菜单：

实例

<
div

class
=
"
form-group
"
>

<
label

for
=
"
sel1
"
>
下拉菜单:
label
>

<
select

class
=
"
form-control
"

id
=
"
sel1
"
>

<
option
>
1
option
>

<
option
>
2
option
>

<
option
>
3
option
>

<
option
>
4
option
>

select
>

div
>

尝试一下 »

网站名称：创新互联Bootstrap4教程：Bootstrap4表单控件
文章网址：http://www.csdahua.cn/qtweb/news7/442807.html

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