一、图片
1.响应式图片
<div class="row">
<img src="images/img_01.jpg" class="img-fluid" alt="">
</div>
2.缩略图:img-thumbnail
<div class="col-md-4">
<img src="images/img_01.jpg" class="img-thumbnail" alt="">
</div>
3.圆角图片:rounded
<div class="col-md-4">
<img src="images/img_01.jpg" class="rounded img-fluid" alt="">
</div>
4.图片对齐方式
![image.png](/uploads/projects/zhangxinxin-4ensx@uixr8f/ca90229217d6802d083ac86b5169ca7a.png)
<!-- 图片对齐方式,自己对齐的话通过浮动 -->
<div class="row mt-5">
<div class="col">
<img src="images/img_01.jpg" style="height: 200px;" class="float-left" alt="">
<img src="images/img_01.jpg" style="height: 200px;" class="float-right" alt="">
</div>
</div>
<!-- 通过父级调整对齐,使用文本的对齐方式 -->
<div class="row mt-5">
<div class="col text-right"><!-- text-right:可随意改 -->
<img src="images/img_01.jpg" style="height: 200px;" alt="">
<img src="images/img_01.jpg" style="height: 200px;" alt="">
</div>
</div>
<!-- 自己居中,先要变成block,然后再使用margin:0 auto; -->
<div class="row mt-5">
<div class="col">
<img src="images/img_01.jpg" style="height: 200px;" class="d-block mx-auto" alt=""><!-- class="d-block mx-auto" -->
</div>
</div>
5.picture
<div class="row mt-5">
<picture><!-- picture:什么尺寸的屏幕加载什么尺寸的图片 -->
<source media="(min-width:1200px)" srcset="images/1140.jpg">
<source media="(min-width:992px)" srcset="images/960.jpg">
<source media="(min-width:768px)" srcset="images/720.jpg">
<source media="(min-width:576px)" srcset="images/540.jpg">
<img src="images/img_01.jpg" alt=""> <!-- 当尺寸小于576的时候会显示这个图片 -->
</picture>
<!-- .webp 图片的格式 :专门针对网页的图片格式,体积很小,比jpg小上百倍,但仍能显示高清图片--><!-- 支持情况:>=ios9.3 || >android4.4 ,IE不支持,火狐谷歌支持-->
</div>
二、表格
![image.png](/uploads/projects/zhangxinxin-4ensx@uixr8f/8aa7a0cb86a8d32c61662078810e25b9.png)
<body>
<!-- 具体的在bootstrap的中文文档里有介绍 -->
<div class="container">
<div class="row">
<div class="table-responsive"><!-- class可以设置颜色 --><!-- table-responsive:滚动条 -->
<table class="table table-sm">
<caption>课程表</caption>
<thead>
<tr>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
<th>heading</th>
</tr>
</thead>
<tbody>
<tr>
<td>语文</td>
<td>数学</td>
<td>英语</td>
<td>生物</td>
<td>化学</td>
</tr>
<tr>
<td>语文</td>
<td>数学</td>
<td>英语</td>
<td>生物</td>
<td>化学</td>
</tr>
<tr>
<td>语文</td>
<td>数学</td>
<td>英语</td>
<td>生物</td>
<td>化学</td>
</tr>
<tr>
<td>语文</td>
<td>数学</td>
<td>英语</td>
<td>生物</td>
<td>化学</td>
</tr>
<tr>
<td>语文</td>
<td>数学</td>
<td>英语</td>
<td>生物</td>
<td>化学</td>
</tr>
<tr>
<td>语文</td>
<td>数学</td>
<td>英语</td>
<td>生物</td>
<td>化学</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</body>
三、图文区
![image.png](/uploads/projects/zhangxinxin-4ensx@uixr8f/850690cc19b48d0973aea2f062febf3f.png)
<body>
<div class="container">
<div class="row">
<figure class="figure">
<img src="images/1140.jpg" class="img-fluid rounded figure-img" alt=""><!-- img-fluid figure-img :响应式图片????-->
<figcaption class="figure-caption text-center">一叶知秋</figcaption>
</figure>
</div>
</div>
</body>