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/// <summary>
/// HttpClient实现Post请求(异步)
/// </summary>
static async void dooPost()
{
string url = "http://localhost:52824/api/register";
//设置HttpClientHandler的AutomaticDecompression
var handler = new HttpClientHandler() { AutomaticDecompression = DecompressionMethods.GZip };
//创建HttpClient（注意传入HttpClientHandler）
using (var http = new HttpClient(handler))
{
//使用FormUrlEncodedContent做HttpContent
var content = new FormUrlEncodedContent(new Dictionary<string, string>()
{ {"Id","6"},
{"Name","添加zzl"},
{"Info", "添加动作"}//键名必须为空
});
//await异步等待回应
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