第五步
D:\wamp64\www\yii2\advanced>php composer.phar global require "fxp/composer-asset-plugin:1.0.0-beta3"
Changed current directory to C:/Users/boyu/AppData/Roaming/Composer
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)

Failed to decode response: zlib_decode(): data error
Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info

环境变量配的是什么啊