C# 使用 Main 參數調用異步任務時出錯

Question

這是我的方法，一個異步 HTTP POST ：

public async Task CreateConsentAsync(Uri HTTPaddress, cHeaders cconsHeaders, cBody ccons, HttpMethod Method)
{
    try
    {
        HttpClient client = new HttpClient();
        System.Text.UTF8Encoding utf8 = new System.Text.UTF8Encoding(encoderShouldEmitUTF8Identifier: false, throwOnInvalidBytes: true);

        using (HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, HTTPaddress))
        {
            client.BaseAddress = HTTPaddress;
            client.DefaultRequestHeaders.Accept.Clear();
            client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("*/*"));

            client.DefaultRequestHeaders.Add("Connection", "keep-alive");
            client.DefaultRequestHeaders.Add("Cache-Control", "no-cache");
            client.DefaultRequestHeaders.Add("SomeHeader", cconsHeaders.SomeHeader);
            //etc..

            request.Content = new StringContent(JsonConvert.SerializeObject(ccons, Formatting.Indented), utf8, "application/json");

            using (HttpResponseMessage response = await client.SendAsync(request).ConfigureAwait(false))
            {
                Int32 code = (Int32)response.StatusCode;
                Console.ReadLine();
            }
        }
    }
    catch (Exception e)
    {
        Console.WriteLine("Error in " + e.TargetSite + "\r\n" + e.Message); Console.ReadLine();
    }
}

當我嘗試從 Main 調用它時，正確提供所有參數，例如：

CreateConsentAsync(NewConsent.BaseURL, NewConsent.Headers, NewConsent.Body, HttpMethod.Post).GetAwaiter().GetResult();

我得到錯誤：

非靜態字段、方法或屬性“Program.CreateConsentAsync(Uri, cHeaders, cBody, HttpMethod)”需要一個對象

任何想法和幫助將不勝感激..

Answer 1

CreateConsentAsync方法是一個實例方法，因此不是靜態方法。 如果要將其稱為您共享的錯誤消息，則應將其標記為靜態消息：

public static async Task CreateConsentAsync