返回值为200的时候,为图片能正常显示
private int GetUrlError(string curl) {
int num = 200;
if (this.method == 1) {
HttpWebRequest request = (HttpWebRequest) WebRequest.Create(new Uri(curl));
ServicePointManager.Expect100Continue = false;
try { ((HttpWebResponse) request.GetResponse()).Close();
} catch(WebException exception) {
if (exception.Status != WebExceptionStatus.ProtocolError) {
return num;
}
if (exception.Message.IndexOf("500 ") > 0) {
return 500;
}
if (exception.Message.IndexOf("401 ") > 0) {
return 401;
}
if (exception.Message.IndexOf("404") > 0) {
num = 404;
}
}
return num;
}
}
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