using System;
using System.Net.Http;
using System.Threading.Tasks;
using Newtonsoft.Json.Linq;
class Idcard
{
private const string AppKey = "YOUR_APPKEY_HERE";
public static async Task City2codeAsync(string city)
{
try
{
using var client = new HttpClient();
string url = "https://api.jisuapi.com/idcard/city2code";
string requestUrl = $"{url}?appkey={AppKey}&city={city}";
HttpResponseMessage response = await client.GetAsync(requestUrl);
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync();
JObject jsonarr = JObject.Parse(responseBody);
if ((int)jsonarr["status"] != 0)
{
Console.WriteLine(jsonarr["msg"]);
return;
}
JObject result = (JObject)jsonarr["result"];
Console.WriteLine($"{result["province"]} {result["city"]} {result["town"]} {result["code"]}");
}
catch (HttpRequestException ex)
{
Console.WriteLine($"请求出错: {ex.Message}");
}
catch (Exception ex)
{
Console.WriteLine($"发生错误: {ex.Message}");
}
}
static async Task Main(string[] args)
{
await Idcard.QueryAsync("41272519800102067x");
await Idcard.City2codeAsync("鹿邑");
}
} 

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