1,安装echartsnpm install echarts --save有cnpm 的可以cnpm安装2,在main.js中导入import { createApp } from 'vue'import App from './App.vue'import * as echarts from 'echarts'const app = createApp(App).mount('#app')app

1,安装echartsnpm install echarts --save有cnpm 的可以cnpm安装2,在main.js中导入import { createApp } from 'vue'import App from './App.vue'import * as echarts from 'echarts'const app = createApp(App).mount('#app')app

Invalid vnode type when creating vnode: undefined.主要是因为引入组件的时候，变量名没有首字母大写import winVue from "./components/win.vue";//错误的import WinVue from "./components/win.vue";//正确的

CSS也是可以进行运算的!!!CSS中的calc函数是可以对不同值进行计算的它可以在 <length>, <frequency>,<angle>, <time>, <percentage>, <number>, or<integer> 之间进行计算例如width: calc(100% - 80px);CSS cal