https://getcomposer.org/doc/articles/versions.md#hyphenated-version-range-
标签归档：composer
composer设置代理、CMD、powershell设置代理
cmd: set http_proxy=127.0.0.1:1080 powershell: $env:http_proxy="127.0.0.1:1080" $env:https_proxy="127.0.0.1:1080"
http_proxy 用于http链接
https_proxy 用于https链接