###?設置鏡像源
全局設置
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
當個項目設置
composer config repo.packagist composer https://mirrors.aliyun.com/composer/
恢復官方源
composer config -g --unset repos.packagist
### 常用源
| 阿里云 | https://mirrors.aliyun.com/composer/ | 更新快，推薦使用?5 |
| 騰訊云 | https://mirrors.cloud.tencent.com/composer/ | 24小時全量更新?6 |
| Packagist官方 | https://repo.packagist.org | 官方源，速度較慢? |
### 清除緩存
composer clear-cache
### 坑，執行該命令，老是報錯，誤導以為沒有設置成功
composer config -g repo.packagist
報錯內容：
In ConfigCommand.php line 298:
? There is no packagist repository defined ?
改為這個命令成功
composer config -g repo.packagist.org
### composer install問題
原因：github api使用中沒有token,按照提示，登錄地址，生成，復制token
解決:復制token，粘貼到命令行就可以了
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