XMLHttpRequest和ActiveXObject学习
//var xmlHttpReq = new ActiveXObject("MSXML2.XMLHTTP.3.0");//定义变量,存储对象 var xmlHttp;// 创建XMLHttpRequest对象if (window.ActiveXObject) { xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");} else if (window.XMLHttpRequest) { xmlHttpReq = new ...