以下是代码demo

https://download.csdn.net/download/qq_53217825/87602397

获取get表头的api资源

 [HttpPost(Name = "Post")]
        //get请求
        public async void Post()
        {
            var response = await client.GetAsync("https://jsonplaceholder.typicode.com/todos/1");//获取到接口数据
            if (response.IsSuccessStatusCode)//判断是否回传正常
            {
                string jsonContent = await response.Content.ReadAsStringAsync();//拿到值并序列化
                Todo todo = JsonConvert.DeserializeObject<Todo>(jsonContent);

                Console.WriteLine("ID: {0}", todo.Id);
                Console.WriteLine("Title: {0}", todo.Title);
                Console.WriteLine("Completed: {0}", todo.Completed);
            }
            else
            {
                Console.WriteLine("Failed to get API data");
            }
           
        }

获取post标头的api资源

 [HttpPost("PostDD")]
        //post请求
        public async void PostDD()
        {
            var todoItem = new TodoItem { Title = "Test Todo Item", Completed = false };
            var content = new StringContent(JsonConvert.SerializeObject(todoItem), System.Text.Encoding.UTF8, "application/json");

            var response = await client.PostAsync("https://jsonplaceholder.typicode.com/todos", content);//请求方法，路径，数据
            if (response.IsSuccessStatusCode)
            {
                string jsonContent = await response.Content.ReadAsStringAsync();//数据
                TodoItem newTodoItem = JsonConvert.DeserializeObject<TodoItem>(jsonContent);//反序列化

                Console.WriteLine("ID: {0}", newTodoItem.Id);
                Console.WriteLine("Title: {0}", newTodoItem.Title);
                Console.WriteLine("Completed: {0}", newTodoItem.Completed);
            }
            else
            {
                Console.WriteLine("Failed to create new todo item");
            }
        }