<SPAN style="COLOR: #ff0000">// 需要標(biāo)識(shí)為WebMethod</SPAN>
[System.Web.Services.WebMethod]
<SPAN style="COLOR: #ff0000">// 注意，要讓前臺(tái)調(diào)用的方法，一定要是public和static的</SPAN>
public static string Say(string name)
{
string result = "Hello:" + name;
return result;
}

<script type="text/javascript">
function btnClick(){
PageMethods.Say("you",funReady,funError);<SPAN style="COLOR: #ff6666">//注意js中調(diào)用后臺(tái)方法的方式</SPAN>
}
<SPAN style="COLOR: #ff0000">//回調(diào)函數(shù)， result 就是后臺(tái)方法返回的數(shù)據(jù)</SPAN>
function funReady(result){
alert(result);
}
<SPAN style="COLOR: #ff0000">//錯(cuò)誤處理函數(shù)，err 就是后臺(tái)方法返回的錯(cuò)誤信息</SPAN>
function funError(err){
alert("Error:" + err._message );
}
</script>
<asp:ScriptManagerID="ScriptManager1" runat="server"EnablePageMethods="true" />
<inputtype="button" onclick="btnClick()" value="test"/>

protected string Say(string strCC)
{
strCC = "你好！" + strCC;
return strCC;
}

function Show()
{
var v = "中國(guó)";
var s = '<%=Say("'+v+'") %>'; // 你好！“+V+”
alert(s);
}<P style="MARGIN: 0in; FONT-FAMILY: Arial; COLOR: #666666; FONT-SIZE: 9pt"><input type="button" onclick="Show()" value="提交" /></P>

<SPAN style="COLOR: #666666">// 需要標(biāo)識(shí)為WebMethod
[System.Web.Services.WebMethod]
// </SPAN><SPAN style="COLOR: #ff0000">注意，要讓前臺(tái)調(diào)用的方法，一定要是public和static的</SPAN><SPAN style="COLOR: #666666">
public static string Say(string name)
{
string result = "Hello:" + name;
return result;
}
</SPAN>

<SPAN style="COLOR: #666666"><script type="text/javascript">
function btnClick(){
// </SPAN><SPAN style="COLOR: #ff0000">調(diào)用頁面后臺(tái)方法，前面跟方法所需的參數(shù)，接著是方法回調(diào)成功時(shí)要執(zhí)行的js函數(shù)，最后一個(gè)是方法回調(diào)失敗時(shí)要執(zhí)行的js函數(shù)</SPAN><SPAN style="COLOR: #666666">
WebSerCustomer.Say("you",function(ress){//ress就是后臺(tái)方法返回的數(shù)據(jù)，Say是webservice WebSerCustomer.axms頁面上的方法
alert(ress)
});
}
</script>
<asp:ScriptManager ID="ScriptManager1" runat="server">
<Services><asp:ServiceReference Path="~/WebSerCustomer.asmx" /></Services>//WebSerCustomer.asmx后臺(tái)webservice類的頁名稱
</asp:ScriptManager>

<input type="button" onclick="btnClick()" value="test" /></SPAN>