HTML的断行word-wrap: break-word 和 word-break: break-all 到底有啥区别？

1做项目改bug的时候，遇到过好多次，要么是文本超出文本区域，或者单词太长(一般是url链接中的一些鬼)，把装它的标签强制撑大，导致一些响应式问题。除此之外，还有很多问题，每次都是恍然醒悟，然后又在网上查看，过几天又开始淡忘。人老了，得承认，记性不好，笔记就应该起到重要性作用，对，就是这样的。

1.首先，我们先来看浏览器默认情况下出现的bug:

.div0, .div1, .div2 {
       width: 200px;
       height: 50px;
       background-color: #00CCFF;
       margin-top: 20px;
}

 <h3>浏览器默认情况</h3>
     <div class="div0">
         <p>this is just a testttttttttttttttttttttttttttttttttttttttttttttttttt!</p>
     </div>

结果：

浏览器默认情况下，如果有一个单词很长，导致一行剩下的空间放不下，则浏览器会把这个单词挪到下一行去。但是如果新行还是放不下，则会溢出父元素。呵呵呵，这样是不是很丑呀，如果在响应式下面，你就会发现，在moile端老是出现横向滚动条，找呀找呀，最终是这个家伙搞的鬼！

2.word-wrap: break-word;

 div1 { word-wrap: break-word; }

 <h3>word-wrap: break-word; </h3>
     <div class="div1">
         <p>this is just a testttttttttttttttttttttttttttttttttttttttttttttttttt!</p>
     </div>

结果：

word-wrap: break-word; 比较温柔，会先另起一行，新的行放不到再把单词断了。

3.word-break: break-all;

  .div2 { word-break: break-all;  }

 <h3>word-break: break-all;</h3>
     <div class="div2">
         <p>this is just a testttttttttttttttttttttttttttttttttttttttttttttttttt!</p>
     </div>

结果：