c# demo
调用 private async Task<Tuple<string, int>> _GetAuthInfo(string rawdata)
返回:
<html>
<head>
<title>504 Gateway Time-out</title>
</head>
<body bgcolor="white">
<center>
<h1>504 Gateway Time-out</h1>
</center>
<hr>
<center>nginx</center>
</body>
</html>

是获取的演示后台接口 的数据