public class GeocodingResult
{
    public int status { get; set; } = -1;
    public string msg { get; set; }
    public Result result { get; set; }
}
 
public class Result
{
    public Location location { get; set; }
    public int precise { get; set; }
    public int confidence { get; set; }
    public int comprehension { get; set; }
    public string level { get; set; }
}
 
public class Location
{
    public float lng { get; set; }
    public float lat { get; set; }
}

public class Config
{
    public static string Ak { get; set; } = "xxxxxxxxxxxxxx";//這里根據(jù)實(shí)際填寫(xiě)，填寫(xiě)剛才申請(qǐng)的應(yīng)用ak
}
 
public class HttpRequestHelper
{
    public static async Task<string> RequestUrl(string url)
    {
        string content = string.Empty;
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
        using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
        {
            using (StreamReader sr = new StreamReader(response.GetResponseStream()))
            {
                content = await sr.ReadToEndAsync();
            }
        }
        return content;
    }
}
 
public class GeocodingMap
{
    public static async Task<GeocodingResult> GetGeocoding(string address)
    {
        //API 文檔：https://lbsyun.baidu.com/index.php?title=webapi/guide/webservice-geocoding
 
        string url = @$"https://api.map.baidu.com/geocoding/v3/?address={address}&output=json&ak={Config.Ak}";
        string strJson = await HttpRequestHelper.RequestUrl(url);
        var requestResult = JsonSerializer.Deserialize<GeocodingResult>(strJson);
        return requestResult;
    }
}
 

var geocoding = await GeocodingMap.GetGeocoding(address);
if (geocoding.status == 0)
{
    //經(jīng)緯度
    var axisX = geocoding.result.location.lng;
    var axisY = geocoding.result.location.lat
}