window安装composer
复制到composer.json 最后面 设置请求国内的连接默认是国外的请求太慢请求不回来数据 要在最后｝中
"repositories": {
"packagist": {
"type": "composer",
"url": "https://packagist.phpcomposer.com"
}
}

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配置php 环境变量 可以用cmd在除了php安装的目录能用php功能
https://blog.csdn.net/zhezhebie/article/details/72765262

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用cmd 进入项目跟目录
php -r "copy('https://install.phpcomposer.com/installer', 'composer-setup.php');"

php composer-setup.php

php -r "unlink('composer-setup.php');"

echo @php "%~dp0composer.phar" %*>composer.bat

composer install

等待安装完成