安装ext

下载Sencha Cmd 工具、Ext Js SDK 配置环境变量Path路径Sencha Cmd安装路径 1）升级cmd sencha upgrade 创建ext demo sencha -sdk D:\开发工具\ext\ext-6.2.0 generate app --classic app D:\开发工具\ext\Sencha\Cmd\6.7.0.63\extdemo D:\开发工具\ext

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