Bootstrap 按鈕下拉菜單

本章將講解如何使用 Bootstrap class 向按鈕添加下拉菜單。如需向按鈕添加下拉菜單，只需要簡單地在一個 .btn-group 容器中放置按鈕和下拉菜單即可。您也可以使用 來指示按鈕作為下拉菜單。

10年的玉林網(wǎng)站建設(shè)經(jīng)驗，針對設(shè)計、前端、開發(fā)、售后、文案、推廣等六對一服務(wù)，響應(yīng)快，48小時及時工作處理。全網(wǎng)營銷推廣的優(yōu)勢是能夠根據(jù)用戶設(shè)備顯示端的尺寸不同，自動調(diào)整玉林建站的顯示方式，使網(wǎng)站能夠適用不同顯示終端，在瀏覽器中調(diào)整網(wǎng)站的寬度，無論在任何一種瀏覽器上瀏覽網(wǎng)站，都能展現(xiàn)優(yōu)雅布局與設(shè)計，從而大程度地提升瀏覽體驗。創(chuàng)新互聯(lián)從事“玉林網(wǎng)站設(shè)計”,“玉林網(wǎng)站推廣”以來，每個客戶項目都認真落實執(zhí)行。

下面的實例演示了一個基本的簡單的按鈕下拉菜單：

實例

<
div

class
=
"
btn-group
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-default dropdown-toggle
"

data-toggle
=
"
dropdown
"
>
默認
<
span

class
=
"
caret
"
>
span
>

button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>

<
a

href
=
"
#
"
>
功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
另一個功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
其他
a
>

li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>

<
a

href
=
"
#
"
>
分離的鏈接
a
>

li
>

ul
>

div
>

<
div

class
=
"
btn-group
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-primary dropdown-toggle
"

data-toggle
=
"
dropdown
"
>
原始
<
span

class
=
"
caret
"
>
span
>

button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>

<
a

href
=
"
#
"
>
功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
另一個功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
其他
a
>

li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>

<
a

href
=
"
#
"
>
分離的鏈接
a
>

li
>

ul
>

div
>

嘗試一下 ?

結(jié)果如下所示：

分割的按鈕下拉菜單

分割的按鈕下拉菜單使用與下拉菜單按鈕大致相同的樣式，但是對下拉菜單添加了原始的功能。分割按鈕的左邊是原始的功能，右邊是顯示下拉菜單的切換。

實例

<
div

class
=
"
btn-group
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-default
"
>
默認
button
>

<
button

type
=
"
button
"

class
=
"
btn btn-default dropdown-toggle
"

data-toggle
=
"
dropdown
"
>

<
span

class
=
"
caret
"
>
span
>

<
span

class
=
"
sr-only
"
>
切換下拉菜單
span
>

button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>
<
a

href
=
"
#
"
>
功能
a
>
li
>

<
li
>
<
a

href
=
"
#
"
>
另一個功能
a
>
li
>

<
li
>
<
a

href
=
"
#
"
>
其他
a
>
li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>
<
a

href
=
"
#
"
>
分離的鏈接
a
>
li
>

ul
>

div
>

<
div

class
=
"
btn-group
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-primary
"
>
原始
button
>

<
button

type
=
"
button
"

class
=
"
btn btn-primary dropdown-toggle
"

data-toggle
=
"
dropdown
"
>

<
span

class
=
"
caret
"
>
span
>

<
span

class
=
"
sr-only
"
>
切換下拉菜單
span
>

button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>
<
a

href
=
"
#
"
>
功能
a
>
li
>

<
li
>
<
a

href
=
"
#
"
>
另一個功能
a
>
li
>

<
li
>
<
a

href
=
"
#
"
>
其他
a
>
li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>
<
a

href
=
"
#
"
>
分離的鏈接
a
>
li
>

ul
>

div
>

嘗試一下 ?

結(jié)果如下所示：

按鈕下拉菜單的大小

您可以使用帶有各種大小按鈕的下拉菜單：.btn-lg、.btn-sm 或 .btn-xs。

實例

<
div

class
=
"
btn-group
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-default dropdown-toggle btn-lg
"

data-toggle
=
"
dropdown
"
>
默認
<
span

class
=
"
caret
"
>
span
>

button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>

<
a

href
=
"
#
"
>
功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
另一個功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
其他
a
>

li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>

<
a

href
=
"
#
"
>
分離的鏈接
a
>

li
>

ul
>

div
>

<
div

class
=
"
btn-group
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-primary dropdown-toggle btn-sm
"

data-toggle
=
"
dropdown
"
>
原始
<
span

class
=
"
caret
"
>
span
>

button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>

<
a

href
=
"
#
"
>
功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
另一個功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
其他
a
>

li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>

<
a

href
=
"
#
"
>
分離的鏈接
a
>

li
>

ul
>

div
>

<
div

class
=
"
btn-group
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-success dropdown-toggle btn-xs
"

data-toggle
=
"
dropdown
"
>
成功
<
span

class
=
"
caret
"
>
span
>
button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>

<
a

href
=
"
#
"
>
功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
另一個功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
其他
a
>

li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>

<
a

href
=
"
#
"
>
分離的鏈接
a
>

li
>

ul
>

div
>

嘗試一下 ?

結(jié)果如下所示：

按鈕上拉菜單

菜單也可以往上拉伸的，只需要簡單地向父 .btn-group 容器添加 .dropup 即可。

實例

<
div

class
=
"
row
"

style
=
"
margin-left:50px; margin-top:200px
"
>

<
div

class
=
"
btn-group dropup
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-default dropdown-toggle
"

data-toggle
=
"
dropdown
"
>
默認
<
span

class
=
"
caret
"
>
span
>

button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>

<
a

href
=
"
#
"
>
功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
另一個功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
其他
a
>

li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>

<
a

href
=
"
#
"
>
分離的鏈接
a
>

li
>

ul
>

div
>

<
div

class
=
"
btn-group dropup
"
>

<
button

type
=
"
button
"

class
=
"
btn btn-primary dropdown-toggle
"

data-toggle
=
"
dropdown
"
>
原始
<
span

class
=
"
caret
"
>
span
>

button
>

<
ul

class
=
"
dropdown-menu
"

role
=
"
menu
"
>

<
li
>

<
a

href
=
"
#
"
>
功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
另一個功能
a
>

li
>

<
li
>

<
a

href
=
"
#
"
>
其他
a
>

li
>

<
li

class
=
"
divider
"
>
li
>

<
li
>

<
a

href
=
"
#
"
>
分離的鏈接
a
>

li
>

ul
>

div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

當前題目：創(chuàng)新互聯(lián)Bootstrap教程：Bootstrap按鈕下拉菜單
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