1 <promotion_coupons_get_response>
 2     <tot_results>
 3         200
 4     </tot_results>
 5     <coupons list="true">
 6         <coupon>
 7             <coupon_id>
 8                 123456
 9             </coupon_id>
10             <denominations>
11                 5
12             </denominations>
13             <creat_time>
14                 2000-01-01 00:00:00
15             </creat_time>
16             <end_time>
17                 2000-01-01 00:00:00
18             </end_time>
19             <condition>
20                 500
21             </condition>
22         </coupon>
23     </coupons>
24 </promotion_coupons_get_response>

 1 /// <summary>
 2     /// 获取XML结点值
 3     /// </summary>
 4     /// <param name="Str">xml，如：XmlNodeList[0].InnerXml</param>
 5     /// <param name="xPath">结点，如：time这个结点</param>
 6     /// <returns>值</returns>
 7     public static string get_Str_Nodes(string Str, string xPath)
 8     {
 9         int x = 0, y = 0, z = 0;
10         x = Str.IndexOf("<" + xPath + ">");
11         y = Str.IndexOf("</" + xPath + ">");
12         z = xPath.Length + 2;
13         if (y > x)
14         {
15             return Str.Substring(x + z, y - x - z).Trim();
16         }
17         else
18         {
19             return "";
20         }
21     }

 1 XmlNodeList couponNodes = CouponXml.SelectNodes("//coupon"); 
 2               
 3             if (couponNodes != null)                
 4             {                    
 5                 foreach(XmlNode couponNode in couponNodes)                    
 6                 {                        
 7                     string coupon_Id = get_Str_Nodes(couponNode.InnerXml, "coupon_Id");                        
 8                     string denominations = get_Str_Nodes(couponNode.InnerXml, "denominations");                     
 9                 }                
10             }