1.app.json

  "useExtendedLib": {
    "kbone": true,
    "weui": true
  }

2.在页面的index.json中引入

  "usingComponents": {
    "mp-dialog": "weui-miniprogram/dialog/dialog"
  },

3.使用

<mp-dialog title="这是一个弹窗" show="{{true}}" bindbuttontap="tapDialogButton" buttons="{{buttons}}">
    <view>这里是内容</view>
</mp-dialog>