在本章中,我们将学习如何使用 Bootstrap 创建表单。Bootstrap 通过一些简单的 HTML 标签和扩展的类即可创建出不同样式的表单。
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表单元素 ,
Bootstrap 提供了两种类型的表单布局:
以下实例使用两个输入框,一个复选框,一个提交按钮来创建堆叠表单:
<
form
>
<
div
class
=
"
mb-3 mt-3
"
>
<
label
for
=
"
email
"
class
=
"
form-label
"
>
Email:
label
>
<
input
type
=
"
email
"
class
=
"
form-control
"
id
=
"
email
"
placeholder
=
"
Enter email
"
name
=
"
email
"
>
div
>
<
div
class
=
"
mb-3
"
>
<
label
for
=
"
pwd
"
class
=
"
form-label
"
>
Password:
label
>
<
input
type
=
"
password
"
class
=
"
form-control
"
id
=
"
pwd
"
placeholder
=
"
Enter password
"
name
=
"
pswd
"
>
div
>
<
div
class
=
"
form-check mb-3
"
>
<
label
class
=
"
form-check-label
"
>
<
input
class
=
"
form-check-input
"
type
=
"
checkbox
"
name
=
"
remember
"
>
Remember me
label
>
div
>
<
button
type
=
"
submit
"
class
=
"
btn btn-primary
"
>
Submit
button
>
form
>
尝试一下 »
显示效果:
实例中我们使用 .form-label 类来确保标签元素有一定的内边距。
复选框(checkboxe)使用不同的标记。 它们使用 .form-check 包裹在容器元素周围。复选框和单选按钮使用 .form-check-input,它的标签可以使用 .form-check-label 类。
如果您希望表单元素并排显示,请使用 .row 和 .col:
以下实例的两个输入框并排显示,创建内联表单:
<
form
>
<
div
class
=
"
row
"
>
<
div
class
=
"
col
"
>
<
input
type
=
"
text
"
class
=
"
form-control
"
placeholder
=
"
Enter email
"
name
=
"
email
"
>
div
>
<
div
class
=
"
col
"
>
<
input
type
=
"
password
"
class
=
"
form-control
"
placeholder
=
"
Enter password
"
name
=
"
pswd
"
>
div
>
div
>
form
>
尝试一下 »
显示效果:
使用 textarea 标签创建文本框提交表单,使用 .form-control 类渲染文本框 textareas 标签:
<
label
for
=
"
comment
"
>
请输入评论:
label
>
<
textarea
class
=
"
form-control
"
rows
=
"
5
"
id
=
"
comment
"
name
=
"
text
"
>
textarea
>
尝试一下 »
显示效果:
我们可以通过在 .form-control 输入框中使用 .form-control-lg 或 .form-control-sm 类来设置输入框的大小:
<
input
type
=
"
text
"
class
=
"
form-control form-control-lg
"
placeholder
=
"
大号输入框
"
>
<
input
type
=
"
text
"
class
=
"
form-control
"
placeholder
=
"
正常大小输入框
"
>
<
input
type
=
"
text
"
class
=
"
form-control form-control-sm
"
placeholder
=
"
小号输入框
"
>
尝试一下 »
显示效果:
使用 disabled/readonly 属性设置输入框禁用/只读:
<
input
type
=
"
text
"
class
=
"
form-control
"
placeholder
=
"
Normal input
"
>
<
input
type
=
"
text
"
class
=
"
form-control
"
placeholder
=
"
Disabled input
"
disabled
>
<
input
type
=
"
text
"
class
=
"
form-control
"
placeholder
=
"
Readonly input
"
readonly
>
尝试一下 »
使用 .form-control-plaintext 类可以删除输入框的边框::
<
input
type
=
"
text
"
class
=
"
form-control-plaintext
"
placeholder
=
"
Plaintext input
"
>
<
input
type
=
"
text
"
class
=
"
form-control
"
placeholder
=
"
Normal input
"
>
尝试一下 »
使用 .form-control-color 类可以创建一个取色器:
<
input
type
=
"
color
"
class
=
"
form-control form-control-color
"
value
=
"
#CCCCCC
"
>
尝试一下 »
显示效果:
文章标题:创新互联Bootstrap5教程:Bootstrap5 表单
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