protected string GetAddressByIp(string ip) { // string ip = TextBox1.Text.ToString().Trim(); //"115.193.217.249"; string PostUrl = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?ip=" + ip; string res = SystemTool.GetDataByPost(PostUrl);//该条请求返回的数据为:res=1\t115.193.210.0\t115.194.201.255\t中国\t浙江\t杭州\t电信 SystemTool.SaveTxtInfo(res, "log/res.txt"); if (res.Contains("-")) { return(""); } string[] arr = SystemTool.getAreaInfoList(res); if (arr.Length > 2) { return(arr[0] + arr[1].ToString().Trim() + arr[2].ToString()); } else { return(""); } }