时间：2021-03-10 09:25:26 | 栏目：.NET代码 | 点击：次
在对接第三方支付的时候，第三方会要求参数按照ASCII码从小到大排序。如下：
public static void requestPay()
{ Dictionary<string, string> dics = new Dictionary<string, string>();
dics.Add("amount", amount);
dics.Add("callback_url", callback_url);
dics.Add("goodsname", goodsname);
dics.Add("merchno", merchno);
dics.Add("notify_url", notify_url);
dics.Add("ordno", ordno);
dics.Add("organno", organno);
dics.Add("version", version);
dics.Add("paytype", paytype);
getParamSrc(dics);
}
public static String getParamSrc(Dictionary<string, string> paramsMap)
{
var vDic = (from objDic in paramsMap orderby objDic.Key ascending select objDic);
StringBuilder str = new StringBuilder();
foreach (KeyValuePair<string, string> kv in vDic)
{
string pkey = kv.Key;
string pvalue = kv.Value;
str.Append(pkey + "=" + pvalue + "&");
}
String result = str.ToString().Substring(0, str.ToString().Length - 1);
return result;
}