compser好用镜像
阿里云 Composer 全量镜像
所有项目都会使用该镜像地址：
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
取消配置：
composer config -g --unset repos.packagist
项目配置
仅修改当前工程配置，仅当前工程可使用该镜像地址：
composer config repo.packagist composer https://mirrors.aliyun.com/composer/
取消配置：
composer config --unset repos.packagist
调试
composer 命令增加 -vvv 可输出详细的信息，命令如下：
composer -vvv require alibabacloud/sdk
遇到问题？
- 建议先将Composer版本升级到最新：
composer self-update
- 执行诊断命令：
composer diagnose
- 清除缓存：
composer clear
- 若项目之前已通过其他源安装，则需要更新 composer.lock 文件，执行命令：
composer update --lock
- 配置阿里云和官方两个源，阿里云镜像站下载文件出错时再从官方源上下载。tips：单击复制会出现问题，如需拷贝代码请先选中文本点击鼠标右键进行复制。
{
"repositories": [
{
"description": "阿里云镜像",
"type": "composer",
"url": "https://mirrors.aliyun.com/composer/",
"canonical": false
}
]
}
腾讯composer
##切换镜像指向：
composer config -g repos.packagist composer https://mirrors.tencent.com/composer/