Bootstrap 進(jìn)度條

本章將講解 Bootstrap 進(jìn)度條。在本教程中，您將看到如何使用 Bootstrap 創(chuàng)建加載、重定向或動(dòng)作狀態(tài)的進(jìn)度條。

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Bootstrap 進(jìn)度條使用 CSS3 過渡和動(dòng)畫來獲得該效果。Internet Explorer 9 及之前的版本和舊版的 Firefox 不支持該特性，Opera 12 不支持動(dòng)畫。

默認(rèn)的進(jìn)度條

創(chuàng)建一個(gè)基本的進(jìn)度條的步驟如下：

• 添加一個(gè)帶有 class .progress 的
  。
• 接著，在上面的
  內(nèi)，添加一個(gè)帶有 class .progress-bar 的空的

  。
• 添加一個(gè)帶有百分比表示的寬度的 style 屬性，例如 style="width: 60%"; 表示進(jìn)度條在 60% 的位置。

讓我們看看下面的實(shí)例，.sr-only 類可以隱藏文本內(nèi)容：

實(shí)例

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 40%;
"
>

<
span

class
=
"
sr-only
"
>
40% 完成
span
>

div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

也可以在進(jìn)度條中設(shè)置文本內(nèi)容：

實(shí)例

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar
"

role
=
"
progressbar
"

aria-valuenow
=
"
70
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width:70%
"
>
70%
div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

交替的進(jìn)度條

創(chuàng)建不同樣式的進(jìn)度條的步驟如下：

• 添加一個(gè)帶有 class .progress 的
  。
• 接著，在上面的
  內(nèi)，添加一個(gè)帶有 class .progress-bar 和 class progress-bar-* 的空的

  。其中，* 可以是 success、info、warning、danger。
• 添加一個(gè)帶有百分比表示的寬度的 style 屬性，例如 style="60%"; 表示進(jìn)度條在 60% 的位置。

讓我們看看下面的實(shí)例：

實(shí)例

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-success
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 90%;
"
>

<
span

class
=
"
sr-only
"
>
90% 完成（成功）
span
>

div
>

div
>

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-info
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 30%;
"
>

<
span

class
=
"
sr-only
"
>
30% 完成（信息）
span
>

div
>

div
>

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-warning
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 20%;
"
>

<
span

class
=
"
sr-only
"
>
20% 完成（警告）
span
>

div
>

div
>

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-danger
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 10%;
"
>

<
span

class
=
"
sr-only
"
>
10% 完成（危險(xiǎn)）
span
>

div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

顯示進(jìn)度條文本內(nèi)容：

實(shí)例

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-success
"

role
=
"
progressbar
"

aria-valuenow
=
"
40
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width:40%
"
>
40% Complete (success)
div
>

div
>

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-info
"

role
=
"
progressbar
"

aria-valuenow
=
"
50
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width:50%
"
>
50% Complete (info)
div
>

div
>

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-warning
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width:60%
"
>
60% Complete (warning)
div
>

div
>

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-danger
"

role
=
"
progressbar
"

aria-valuenow
=
"
70
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width:70%
"
>
70% Complete (danger)
div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

條紋的進(jìn)度條

創(chuàng)建一個(gè)條紋的進(jìn)度條的步驟如下：

• 添加一個(gè)帶有 class .progress 和 .progress-striped 的
  。
• 接著，在上面的
  內(nèi)，添加一個(gè)帶有 class .progress-bar 和 class progress-bar-* 的空的

  。其中，* 可以是 success、info、warning、danger。
• 添加一個(gè)帶有百分比表示的寬度的 style 屬性，例如 style="60%"; 表示進(jìn)度條在 60% 的位置。

讓我們看看下面的實(shí)例：

實(shí)例

<
div

class
=
"
progress progress-striped
"
>

<
div

class
=
"
progress-bar progress-bar-success
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 90%;
"
>

<
span

class
=
"
sr-only
"
>
90% 完成（成功）
span
>

div
>

div
>

<
div

class
=
"
progress progress-striped
"
>

<
div

class
=
"
progress-bar progress-bar-info
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 30%;
"
>

<
span

class
=
"
sr-only
"
>
30% 完成（信息）
span
>

div
>

div
>

<
div

class
=
"
progress progress-striped
"
>

<
div

class
=
"
progress-bar progress-bar-warning
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 20%;
"
>

<
span

class
=
"
sr-only
"
>
20% 完成（警告）
span
>

div
>

div
>

<
div

class
=
"
progress progress-striped
"
>

<
div

class
=
"
progress-bar progress-bar-danger
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 10%;
"
>

<
span

class
=
"
sr-only
"
>
10% 完成（危險(xiǎn)）
span
>

div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

動(dòng)畫的進(jìn)度條

創(chuàng)建一個(gè)動(dòng)畫的進(jìn)度條的步驟如下：

• 添加一個(gè)帶有 class .progress 和 .progress-striped 的
  。同時(shí)添加 class .active。
• 接著，在上面的
  內(nèi)，添加一個(gè)帶有 class .progress-bar 的空的

  。
• 添加一個(gè)帶有百分比表示的寬度的 style 屬性，例如 style="60%"; 表示進(jìn)度條在 60% 的位置。

這將會(huì)使條紋具有從右向左的運(yùn)動(dòng)感。

讓我們看看下面的實(shí)例：

實(shí)例

<
div

class
=
"
progress progress-striped active
"
>

<
div

class
=
"
progress-bar progress-bar-success
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 40%;
"
>

<
span

class
=
"
sr-only
"
>
40% 完成
span
>

div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

堆疊的進(jìn)度條

您甚至可以堆疊多個(gè)進(jìn)度條。把多個(gè)進(jìn)度條放在相同的 .progress 中即可實(shí)現(xiàn)堆疊，如下面的實(shí)例所示：

實(shí)例

<
div

class
=
"
progress
"
>

<
div

class
=
"
progress-bar progress-bar-success
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 40%;
"
>

<
span

class
=
"
sr-only
"
>
40% 完成
span
>

div
>

<
div

class
=
"
progress-bar progress-bar-info
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 30%;
"
>

<
span

class
=
"
sr-only
"
>
30% 完成（信息）
span
>

div
>

<
div

class
=
"
progress-bar progress-bar-warning
"

role
=
"
progressbar
"

aria-valuenow
=
"
60
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"

style
=
"
width: 20%;
"
>

<
span

class
=
"
sr-only
"
>
20% 完成（警告）
span
>

div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

---

進(jìn)度條大小

我們可以通過通過 height 屬性來設(shè)置進(jìn)度條的大?。?/p>

實(shí)例

<
div

class
=
"
progress
"

style
=
"
height: 1px;
"
>

<
div

class
=
"
progress-bar
"

role
=
"
progressbar
"

style
=
"
width: 25%;
"

aria-valuenow
=
"
25
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"
>
div
>

div
>

<
div

class
=
"
progress
"

style
=
"
height: 20px;
"
>

<
div

class
=
"
progress-bar
"

role
=
"
progressbar
"

style
=
"
width: 25%;
"

aria-valuenow
=
"
25
"

aria-valuemin
=
"
0
"

aria-valuemax
=
"
100
"
>
div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

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