httpclient之get/post

终于搞得差不多明白了，总结如下(省略了try catch)，参考自这里

1.get：

一坨url带着"编码好"(urlencode需要自己处理)的参数（可以看到）一块发送给服务器。

public async Task<string> GetAsync(string uri)
{
    var httpClient = new HttpClient {Timeout = new TimeSpan(0, 0, 0, 17)};
    var content = await httpClient.GetStringAsync(uri);
    return content;
}

2.post：

一坨url+看不到的参数一块转化为数据流(urlencode可以提前处理)发送给服务器。

 public async Task<string> PostAsync(string url, Dictionary<string, string> para)
        {
            var httpClient = new HttpClient {Timeout = new TimeSpan(0, 0, 0, 17)};
            var contenta = new FormUrlEncodedContent(para);
            var response = await httpClient.PostAsync(url, contenta);
            string content = await response.Content.ReadAsStringAsync();
            return content;
        }