以前拿webClient玩過爬蟲，剛好遇到公司要抓銀行碼就利用
財金資訊股份有限公司的開放資料，結果卡在proxy設定就記錄一下好了
try {
WebClient wc = new WebClient();
StringBuilder sb = new StringBuilder();
//設定proxy,沒有的話直接註解掉
WebProxy wp = new WebProxy("proxy.XXX.com.tw", 80);
wp.Credentials = new NetworkCredential("userName", "userPassword");
wc.Proxy = wp;
Stream web_stream = wc.OpenRead(@"http://www.fisc.com.tw/TC/OPENDATA/Comm1_MEMBER.csv");
StreamReader sr = new StreamReader(web_stream, Encoding.UTF8);
while (!sr.EndOfStream) {
sb.Append(sr.ReadLine).Append(("" + "\r\n"));
}
string ss = sb.ToString();
sr.Dispose();
web_stream.Dispose();
web_stream.Close();
sr.Close();
}
catch (Exception ex) {
}