Gradle sync failed: Cause: dl.google.com:443 failed to respond

太久没打开Android Studio,打开更新同步Gradle 竟然提示

Gradle sync failed: Cause: dl.google.com:443 failed to respond

呵呵o(￣︶￣)o，优雅地打开VtwoRAY 结果还是

Gradle sync failed: Cause: dl.google.com:443 failed to respond

(O_o)??

查了下原来要注释一下gradle.properties里的https代理设置（注意是Global Properties）

systemProp.http.proxyHost=127.0.0.1 systemProp.http.proxyPort=10808 #systemProp.https.proxyHost=127.0.0.1 #systemProp.https.proxyPort=10808