从python到C#的网核(C#)中的POST请求

import requests

url = "http://example.com/api"
payload = {'key1': 'value1', 'key2': 'value2'}  # 请求参数

response = requests.post(url, data=payload)
print(response.text)

using System;
using System.Net.Http;

class Program
{
    static async System.Threading.Tasks.Task Main(string[] args)
    {
        string url = "http://example.com/api";
        var values = new Dictionary<string, string>
        {
            { "key1", "value1" },
            { "key2", "value2" }
        };

        using (var httpClient = new HttpClient())
        {
            var content = new FormUrlEncodedContent(values);
            var response = await httpClient.PostAsync(url, content);

            string responseString = await response.Content.ReadAsStringAsync();
            Console.WriteLine(responseString);
        }
    }
}

headers = {'Content-Type': 'application/json'}

response = requests.post(url, headers=headers, json=payload)
print(response.text)

var headers = new Dictionary<string, string>
{
    { "Content-Type", "application/json" }
};

using (var httpClient = new HttpClient())
{
    var content = new StringContent(JsonConvert.SerializeObject(payload), Encoding.UTF8, "application/json");

    foreach (var header in headers)
    {
        httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
    }

    var response = await httpClient.PostAsync(url, content);

    string responseString = await response.Content.ReadAsStringAsync();
    Console.WriteLine(responseString);
}