梗概

先注册：Declare the plug-ins used in the fields corresponding to each platform in manifest.json.
页面中进行引用：
- plugin is the protocol

实例

注册：

"mp-weixin": {
  "plugins": {
    "myPlugin": {
      "version": "1.0.0",
      "provider": "wxidxxxxxxxxxxxxxxxx",
      "export": "index.js"
    }
  }
}

引用：

// WeChat applet
{
  "path": "pages/index/index",
  "style": {
    "mp-weixin": {
      "usingComponents": {
        "hello-component": "plugin://myPlugin/hello-component"
      }
    }
  }
}