添加证书验证处理程序。返回
true将允许忽略验证错误:
ServicePointManager .ServerCertificatevalidationCallback += (sender, cert, chain, sslPolicyErrors) => true;

添加证书验证处理程序。返回
true将允许忽略验证错误:
ServicePointManager .ServerCertificatevalidationCallback += (sender, cert, chain, sslPolicyErrors) => true;