批量设定input的属性值，比如onclick

Question

了解一下prototype，就可以知道肯定是不可以的

Answer 1

可能有帮助if (window.HTMLElement) {    var element = HTMLElement.prototype;    var capture = ["click", "mousedown", "mouseup", "mousemove", "mouseover", "mouseout" ];    element.setCapture = function(){
        var self = this;
        var flag = false;
        this._capture = function(e){
            if (flag) {return}
            flag = true;
            var event = document.createEvent("MouseEvents");
            event.initMouseEvent(e.type,
                e.bubbles, e.cancelable, e.view, e.detail,
                e.screenX, e.screenY, e.clientX, e.clientY,
                e.ctrlKey, e.altKey, e.shiftKey, e.metaKey,
                e.button, e.relatedTarget);
            self.dispatchEvent(event);
            flag = false;
        };
        for (var i=0; i<capture.length; i++) {
            window.addEventListener(capture[i], this._capture, true);
        }
    };    element.releaseCapture = function(){
        for (var i=0; i<capture.length; i++) {
            window.removeEventListener(capture[i], this._capture, true);
        }
        this._capture = null;
    };} 

Answer 2

这样速度可能会快一点点function onclickFun(){
  this.select();
}
var txt = document.getElementsByTagName('input');
for(var i=0;i<txt.length;i++){
  txt[i].onclick=onclickFun;
}

Answer 3

var txt = document.getElementsByTagName('input');
for(var i=0;i<txt.length;i++){
  txt[i].onclick=function(){this.select();}
}只能这样了