添加了其他功能和完善了代码。vue、konva标注多边形、矩形---demo2.0

# datang-vue ## Project setup ``` npm install ``` ### Compiles and hot-reloads for development ``` npm run serve ``` ### Compiles and minifies for production ``` npm run build ``` ### Lints and fixes files ``` npm run lint ``` ### Customize configuration See [Configuration Reference](https://cli.vuejs.org/config/).