1.Mac终端输入sudo vi /etc/hosts 2.输入密码后，点击 i键，进入Insert模式，将下面内容拷贝进去# GitHub Start 192.30.253.112 github.com 192.30.253.119 gist.github.com 199.232.28.133 assets-cdn.github.com 199.232.28.133 raw.githubusercontent.com 199.232.28.133 gist.git

Upgrading Flutter from /Applications/flutter... error: RPC failed; curl 18 transfer closed with outstanding read data remaining fatal: The remote end hung up unexpectedly fatal: early EOF fatal: index-pack failed在mac环境下升级flutter时遇到这样的错误，进过百度得知为ta

创建一个文件夹 然后打开控制台，输入下面这段代码open -n /Applications/Google\ Chrome.app/ --args --disable-web-security  --user-data-dir=文件所在位置地址 用户需要根据自己的文件夹地址修改代码 输入代码，敲下回车，接下来Chrome应该会弹出一个窗口Chrome弹窗 点击启动Google Chrome，会发现与之前的Chrome相比，此时的Chrome多了上方