asp如何读取json数据格式

就是我自己写的json数据格式，然后我想用asp读出来，但是不知道怎么弄，有人会这个吗？

数据格式是这种的：{"personData":[{"username":"李四","userpwd":"123","user_id":"u166fsif4p20v"}]}

http://json.tongxiehui.net/?post/fu41ub.html

asp json类库解析json字符串

<%
Dim sc4Json
Sub InitScriptControl
Set sc4Json = Server.CreateObject("MSScriptControl.ScriptControl")
sc4Json.Language = "JavaScript"
sc4Json.AddCode "var itemTemp=null;function getJSArray(arr, index){itemTemp=arr[index];}"
End Sub

Function getJSONObject(strJSON)
sc4Json.AddCode "var jsonObject = " & strJSON
Set getJSONObject = sc4Json.CodeObject.jsonObject
End Function

Sub getJSArrayItem(objDest,objJSArray,index)
On Error Resume Next
sc4Json.Run "getJSArray",objJSArray, index
Set objDest = sc4Json.CodeObject.itemTemp
If Err.number=0 Then Exit Sub
objDest = sc4Json.CodeObject.itemTemp
End Sub

Dim strTest
strTest = "{name:""alonely"", age:24, email:[""ycplxl1314@163.com"",""ycplxl1314@gmail.com""], family:{parents:[""父亲"",""母亲""],toString:function(){return ""家庭成员"";}}}"
Dim objTest
Call InitScriptControl
Set objTest = getJSONObject(strTest)
%>
<%=objTest.name%& gt;的邮件地址是<%=sc4Json.eval_r("jsonObject.email[0]")%>
共有邮件地址& lt;%=objTest.email.length%>个

<%
Dim father
getJSArrayItem father, objTest.family.parents, 0
Response.Write father
%>