ubuntu18.04对应openssl包。apt update报错Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification.可能用到
在win7下安装vs2019企业版报错:This application requires.Net framework 4.6 or higher to be installed.Please install the latest.net frameowrk form
https://go.microsoft.com/fwlink/?linkid=840938, or Windows Update.
.Net Framework4.6安装说明