原文链接：http://www.cnblogs.com/ding0910/archive/2007/07/12/815407.html
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Web;
using System.Web.Services;
using BX.Interface;
namespace WebService
{
/**//// <summary>
/// Service1 的摘要说明。
/// </summary>
public class doService : System.Web.Services.WebService
{
/**//// <summary>
/// 网上报销系统WebService服务通用调用方法
/// </summary>
/// <param name="ifCode">接口标识</param>
/// <param name="ifPass">校验码</param>
/// <param name="ifEvent">操作方式(可空)</param>
/// <param name="ifInfo">传入的XML信息</param>
/// <returns></returns>
[WebMethod]
public string IfService(string ifCode,string ifPass,string ifEvent,string ifInfo)
{
ifCode = ifCode.Trim();
ifPass = ifPass.Trim();
ifEvent = ifEvent.Trim();
&
StringBuilder output = new
StringBuilder();
String xmlString =
@"<bookstore>
<book genre='novel' ISBN='10-861003-324'>
<title>The Handmaid's Tale</title>
<price>19.95</price>
</book>
<book genre='novel' ISBN='1-861001-57-5' ......
