Vue中使用vuecodemirror插件实现代码在线编辑

场景

若依前后端分离版手把手教你本地搭建环境并运行项目：

https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/108465662

在上面的基础上，怎样实现代码在线编辑功能。

注：

博客：
https://blog.csdn.net/badao_liumang_qizhi
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实现

1、插件地址

https://github.com/surmon-china/vue-codemirror

在线演示地址

https://github.surmon.me/vue-codemirror

2、安装插件

npm install vue-codemirror --save

3、全局挂载插件方式或者局部页面加载方式

全局挂载

import Vue from 'vue'
import VueCodemirror from 'vue-codemirror'

// import base style
import 'codemirror/lib/codemirror.css'

// import more codemirror resource...

// you can set default global options and events when Vue.use
Vue.use(VueCodemirror, /* {
  options: { theme: 'base16-dark', ... },
  events: ['scroll', ...]
} */)

局部页面引用

import { codemirror } from 'vue-codemirror'

// import base style
import 'codemirror/lib/codemirror.css'

// import more codemirror resource...

export default {
  components: {
    codemirror
  }
}

4、新建Vue页面代码修改如下

<template>
  <!-- Two-way Data-Binding -->
  <!-- <codemirror v-model="code" :options="cmOptions" /> -->
  <!-- Or manually control the data synchronization -->
  <codemirror
    ref="cmEditor"
    :value="code"
    :options="cmOptions"
    @ready="onCmReady"
    @focus="onCmFocus"
    @input="onCmCodeChange"
  />
</template>

<script>

import { codemirror } from 'vue-codemirror'
// import base style
import 'codemirror/lib/codemirror.css'
// import language js
import 'codemirror/mode/javascript/javascript.js'
// import theme style
import 'codemirror/theme/base16-dark.css'
// import more 'codemirror/some-resource...'
export default {
    name: "codemirrorDemo",
    components: {
    codemirror
  },
  data () {
    return {
      code: 'const a = 10',
      cmOptions: {
        tabSize: 4,
        mode: 'text/javascript',
        theme: 'base16-dark',
        lineNumbers: true,
        line: true,
        // more CodeMirror options...
      }
    }
  },
  methods: {
    onCmReady(cm) {
      console.log('the editor is readied!', cm)
    },
    onCmFocus(cm) {
      console.log('the editor is focused!', cm)
    },
    onCmCodeChange(newCode) {
      console.log('this is new code', newCode)
      this.code = newCode
    }
  },
  computed: {
    codemirror() {
      return this.$refs.cmEditor.codemirror
    }
  },
  mounted() {
    console.log('the current CodeMirror instance object:', this.codemirror)
    // you can use this.codemirror to do something...
  }
}
</script>

5、其他设置参考官方说明