var get = { byId: function(id) { return typeof id === "string" ? document.getElementById(id) : id; }, byClass: function(sClass, oParent) { var aClass = []; var reClass = new RegExp("(^| )" + sClass + "( |$)"); var aElem = this.byTagName("*", oParent); for (var i = 0; i < aElem.length; i++) reClass.test(aElem[i].className) && aClass.push(aElem[i]); return aClass; }, byTagName: function(elem, obj) { return (obj || document).getElementsByTagName(elem) }} 调用方法get.byId() get.byClass() get.byTageName()
时间: 2024-07-28 16:21:41