js自定义方法绑定元素事件

//事件绑定封装

function addEvent(elem, type, handle){

  if(elem.addEventListener){

    elem.addEventListener(type,handle,false);

  }else if(elem.attachEvent){

    elem.attachEvent('on'+type,function(){

      handle.call(elem);

    });

  }else{

    elem['on'+type] = handle;

  }

}

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转载自www.cnblogs.com/M87-A/p/11248386.html