复制代码 代码如下:

if (document.createEvent) {

var clickEvent = document.createEvent("MouseEvents");

clickEvent.initEvent("click", false, true);

this.fileEl.dom.dispatchEvent(clickEvent);//ff

} else if (document.createEventObject) {

this.fileEl.dom.fireEvent("onclick", document.createEventObject(e.browserEvent));//ie

}