public static long VisitWebPageSpeedTest(string url = "https://www.google.com", int port = -1)
{
var timeout = Str2Int(StrConst("SpeedTestTimeout"));
Lib.Utils.SupportProtocolTLS12();
WebClient wc = new TimedWebClient
{
Encoding = System.Text.Encoding.UTF8,
Timeout = timeout * 1000,
};
long elasped = 0;
try
{
if (port > 0)
{
wc.Proxy = new WebProxy("127.0.0.1", port);
}
Stopwatch sw = new Stopwatch();
sw.Reset();
sw.Start();
wc.DownloadString(url);
sw.Stop();
elasped = sw.ElapsedMilliseconds;
}
catch { }
wc.Dispose();
return(elasped);
}
public static string Fetch(string url, int timeout = -1)
{
var html = string.Empty;
using (WebClient wc = new TimedWebClient
{
Encoding = System.Text.Encoding.UTF8,
Timeout = timeout,
})
{
/* 如果用抛出异常的写法
* task中调用此函数时
* 会弹出用户未处理异常警告
*/
try
{
html = wc.DownloadString(url);
}
catch { }
}
return(html);
}