JS 事件、IE attachEvent

2017-08-14 14:42:57 Albin Wong 1311

当对文档中的元素进行操作的时候或者文档的状态发生改变的时候会产生一个事件

### 事件的三要素: 事件源、事件类型、事件的处理程序

#### 准备知识

```javascript
<style type="text/css">
    div{
        width:100px;
        height:100px;
        background:#123548;
        margin-bottom:20px;
    }
    .item{
        border-radius:20%;
    }
</style>
<div id="test" style="width:200px;height:200px;background:pink"></div>
<div></div>
<div></div>
<div></div>
<div></div>
<script type="text/javascript">
//使用js获取页面元素
var test = document.getElementById('test');

//修改元素的样式
test.style.background = '#222';

//修改元素的文本
test.innerHTML = '我有点饿了!!!';

//添加属性
test.setAttribute('title','这是一个div');

//批量的操作
//通过标签名来获取元素
var divs = document.getElementsByTagName('div');
for(var i=0;i<divs.length;i++) {
    //样式操作
    divs[i].style.background = 'black';
    //文本操作
    divs[i].innerHTML = '<span style="color:white">我真的有点想吃炸鸡排了!!!!</span>';
    //属性操作
    divs[i].setAttribute('class','item');
}
</script>
```

#### IE attachEvent
```javascript
<div style="width:100px;height:200px;background:#456"></div>

div.attachEvent('onclick', function(){
    alert('我是ie的绑定方式');
});
</script>
```

(3) Comments

John Doe- Reply

February 26, 2013 at 1:18 pm
- saqib sarwar- Reply
  
  February 26, 2013 at 1:20 pm
  
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John Doe- Reply

February 26, 2013 at 1:27 pm

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JS 事件、IE attachEvent

(3) Comments

John Doe- Reply

saqib sarwar- Reply

John Doe- Reply

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