原生JS事件监听兼容封装

var EventUtil = {
    // 添加事件监听
    add: function(element, type, callback){

        if(element.addEventListener){
            element.addEventListener(type, callback, false);
        } else if(element.attachEvent) {
        //兼容IE
            element.attachEvent('on' + type, callback);
        }
    }
}
		var dv=document.getElementById('div')
		 EventUtil.add(dv, 'click', function(){
			 console.log('事件监听兼容');
		 });