IE下使用fireEvent
高级浏览器下使用dispatchEvent
示例代码如下
<!DOCTYPE html>
<html>
<head>
<title>111</title>
</head>
<body>
<select id='bbb' title="1111">
<option></option>
<option value="b2">b2</option>
<option value="b3">b3</option>
</select>
</body>
<script type="text/javascript">
// 添加事件
var bbb = document.getElementById('bbb');
if(bbb.addEventListener){
bbb.addEventListener('change', function(){
console.log('aaaaaa');
});
}
else{
bbb.attachEvent('onchange', function(){
console.log('aaaaaa');
});
}
// 设置select默认值
bbb.value = 'b3';
// 手动触发事件
if (bbb.fireEvent){
bbb.fireEvent('onchange');
}
else{
ev = document.createEvent("HTMLEvents");
ev.initEvent("change", false, true);
bbb.dispatchEvent(ev);
}
// jquery触发
// bbb.trigger('change');
</script>
</html>