使用 vue create ss 创建个名为 ss 的 vue3 项目 (vue2项目不知道为什么不可以）

App.vue中添加方法和事件，并打断点

<button @click="ha">asdfasdfasdfsdf</button>methods: {ha() {console.log('111111111')console.log('222222222222')}}

vue.config.js 添加

configureWebpack: {devtool: "source-map",},

启动 npm run serve

添加 launch.json

{"version": "0.2.0","configurations": [{"type": "chrome","request": "launch","name": "Launch Chrome against localhost","url": "http://localhost:8080","webRoot": "${workspaceFolder}"}]
}

启动调试，点击按钮会进入到调试里。