在下载代码之前加入如下代码:
// 解决WebClient不能通过https下载内容问题
System.Net.ServicePointManager.ServerCertificateValidationCallback +=
delegate(object sender, System.Security.Cryptography.X509Certificates.X509Certificate certificate,
System.Security.Cryptography.X509Certificates.X509Chain chain,
System.Net.Security.SslPolicyErrors sslPolicyErrors)
{
return true; // **** Always accept
};
上述代码主要是为了跳过https的ssl验证。
参考文章: