Composer Curl SSL证书解决SSL certificate problem

Composer出现crul SSL报错的问题是没有安装CA证书导致的！！！ 错误信息如下： [Composer\Downloader\TransportException]                                                                                                      curl error 60 while downloading https://repo.packagist.org/packages.json: SSL certificate problem: unable to get local issuer certificate