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C# 引數按照ASCII碼從小到大排序(字典序)

在對接第三方支付的時候,第三方會要求引數按照ASCII碼從小到大排序。如下:

 1 public static void requestPay()
 2  {
 3        Dictionary<string, string> dics = new Dictionary<string, string>();
 4        dics.Add("amount", amount);
 5        dics.Add("callback_url", callback_url);
 6        dics.Add("goodsname", goodsname);
7 dics.Add("merchno", merchno); 8 dics.Add("notify_url", notify_url); 9 dics.Add("ordno", ordno); 10 dics.Add("organno", organno); 11 dics.Add("version", version); 12 dics.Add("paytype", paytype); 13 14 getParamSrc(dics); 15 } 16 17 public
static String getParamSrc(Dictionary<string, string> paramsMap) 18 { 19 var vDic = (from objDic in paramsMap orderby objDic.Key ascending select objDic); 20 StringBuilder str = new StringBuilder(); 21 foreach (KeyValuePair<string, string> kv in vDic) 22 {
23 string pkey = kv.Key; 24 string pvalue = kv.Value; 25 str.Append(pkey + "=" + pvalue + "&"); 26 } 27 28 String result = str.ToString().Substring(0, str.ToString().Length - 1); 29 return result; 30 }