为什么我访问不了WEBSERVISE

[tangjingbo]

我是个初学者，下面是个很简单的JS，运行时提示网页有错误
代码如下
function test()
{
var s=""
var a = document.getElementById("TextBox1").value;
var b = document.getElementById("TextBox2").value;
var doc = new ActiveXObject("MSXML2.DOMDocument.3.0");
var url = "http://localhost/WebService1/Service1.asmx/test?a=" + a
+ "&b=" + b;
xhttp.Open("GET",url,false);
xhttp.Send();
doc.load(xhttp.ResponseXML);
s = doc.selectSingleNode ("//string").text;
document.getElementById("Label1").innerHTML = s;
}

[tangjingbo]

怎么没人理我哈

[antshome]

WebService不是这样调用的啦

[Spriatee]

function test()
{
var s=""
var a = document.getElementById("TextBox1").value;
var b = document.getElementById("TextBox2").value;
var doc = new ActiveXObject("MSXML2.DOMDocument.3.0");
var url = "http://localhost/WebService1/Service1.asmx/test?a=" + a
+ "&b=" + b;
doc.async = false;
doc.load( url ) ;
alert( doc.text ) ;

//Or , use following method.
//var xhttp=new ActiveXObject( "MSXML2.XMLHTTP" );
//xhttp.Open("GET",url,false);
//xhttp.Send();
//alert( xhttp.ResponseXML.text );
}