下面()不是XMLHttpRequest对象的方法。
A、open()
B、send()
C、readState
D、responseText
A、open()
B、send()
C、readState
D、responseText
A、var url="operate=doCheckUserExists&uname="+uname; B、xmlHttpRequest=createXmlHttpRequest(); C、xmlHttpRequest.onreadystatechange=haoLeJiaoWo; D、xmlHttpRequest.open("POST",url,false);
A、xmlHttpRequest.callBackMethod=onreadystatechange; B、xmlHttpRequest. onreadystatechange(callBackMethod); C、xmlHttpRequest. onreadystatechange(new function(){callBackMethod }); D、xmlHttpRequest. onreadystatechange= callBackMethod;
A、A.var xmlHttp = test XMLHttpRequest(); B、B.var xmlHttp = XMLHttpRequest(); C、C.以上都不正确 D、D.var xmlHttp = new XMLHttpRequest();
A、status、responseText B、readyState、responseXML C、onreadystatechange D、setStatus、getWriter