Bootstrap4 輪播

輪播是一個循環(huán)的幻燈片：

如何創(chuàng)建輪播

以下實例創(chuàng)建了一個簡單的圖片輪播效果：

實例

<
div

id
=
"
demo
"

class
=
"
carousel slide
"

data-ride
=
"
carousel
"
>

<
ul

class
=
"
carousel-indicators
"
>

<
li

data-target
=
"
#demo
"

data-slide-to
=
"
0
"

class
=
"
active
"
>
li
>

<
li

data-target
=
"
#demo
"

data-slide-to
=
"
1
"
>
li
>

<
li

data-target
=
"
#demo
"

data-slide-to
=
"
2
"
>
li
>

ul
>

<
div

class
=
"
carousel-inner
"
>

<
div

class
=
"
carousel-item active
"
>

<
img

decoding
=
"
async
"

src
=
"
https://static.cdccxhl.com/images/mix/img_fjords_wide.jpg
"
>

div
>

<
div

class
=
"
carousel-item
"
>

<
img

decoding
=
"
async
"

src
=
"
https://static.cdcxhl.com/images/mix/img_nature_wide.jpg
"
>

div
>

<
div

class
=
"
carousel-item
"
>

<
img

decoding
=
"
async
"

src
=
"
https://static.cdcxhl.com/images/mix/img_mountains_wide.jpg
"
>

div
>

div
>

<
a

class
=
"
carousel-control-prev
"

href
=
"
#demo
"

data-slide
=
"
prev
"
>

<
span

class
=
"
carousel-control-prev-icon
"
>
span
>

a
>

<
a

class
=
"
carousel-control-next
"

href
=
"
#demo
"

data-slide
=
"
next
"
>

<
span

class
=
"
carousel-control-next-icon
"
>
span
>

a
>

div
>

嘗試一下 ?

輪播圖片上添加描述

在每個

內(nèi)添加

來設(shè)置輪播圖片的描述文本：:

實例

<
div

class
=
"
carousel-item
"
>

<
img

decoding
=
"
async
"

src
=
"
https://static.cdcxhl.com/images/mix/img_fjords_wide.jpg
"
>

<
div

class
=
"
carousel-caption
"
>

<
h3
>
第一張圖片描述標(biāo)題
h3
>

<
p
>
描述文字!
p
>

div
>

div
>

嘗試一下 ?

以上實例中使用的類說明

類	描述
`.carousel`	創(chuàng)建一個輪播
`.carousel-indicators`	為輪播添加一個指示符，就是輪播圖底下的一個個小點，輪播的過程可以顯示目前是第幾張圖。
`.carousel-inner`	添加要切換的圖片
`.carousel-item`	指定每個圖片的內(nèi)容
`.carousel-control-prev`	添加左側(cè)的按鈕，點擊會返回上一張。
`.carousel-control-next`	添加右側(cè)按鈕，點擊會切換到下一張。
`.carousel-control-prev-icon`	與 .carousel-control-prev 一起使用，設(shè)置左側(cè)的按鈕
`.carousel-control-next-icon`	與 .carousel-control-next 一起使用，設(shè)置右側(cè)的按鈕
`.slide`	切換圖片的過渡和動畫效果，如果你不需要這樣的效果，可以刪除這個類。