composer 安装fecshop app advanced
composer global require "fxp/composer-asset-plugin:^1.3.1"
composer create-project fancyecommerce/fecshop-app-advanced fecshop 1.1.1.3
cd fecshop
composer update
./init
安装步骤中
composer global require "fxp/composer-asset-plugin:^1.3.1"
这一步是有什么作用，很困惑，求大佬们解惑！