### 切换阿里镜像 ``` composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/ ``` 2.composer切换 阿里镜像 原文地址 https://developer.aliyun.com/composer 全局配置 ：composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/ composer config -gl 查看全局配置 \[repositories.packagist.org.url\] https://mirrors.aliyun.com/composer/ --成功 3.安装laravel5.6 环境 windows phpstudy8 php7.3.4 以composer来安装laravel 5.6 前提已安装composer 打开cmd-> composer create-project --prefer-dist laravel/laravel=5.6.\* blog  ### 出错原因是 以前的低版本composer 更新时有缓存 composer clearcache 清除缓存OK ``` https://www.cnblogs.com/xfych/p/13446401.html ```