第一次安装Composer,已经安装了Composer-Setup.exe,在命令行输入composer config -g repo.packagist composer [https://mirrors.aliyun.com/composer/](https://link.segmentfault.com/?enc=%2F%2B935AC9UsSyj5%2BIKbIl6w%3D%3D.%2FQa%2FYy3Ngv7GkB2pCa6UZTRQRcZ1zDtewdNb2CZ78Hk5yK6c9ZaZRjEUAtkOqj0%2B),执行报错了,有大佬能帮我看下怎么解决吗?感谢! 