如何使用vue-codemirror插件在vue3项目中实现代码编辑器功能？

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目录+使用+1.命令行安装+2.在需要的组件中配置+配置说明：个人代码编辑器Demo+总结vue-codemirror+基于+CodeMirror+，适用于+Vue+的+Web+代码编辑器。使用+1.命令行安装+npm+install+vue-codemirror+--

目录

• 使用
• 1.命令行安装
• 2.在需要的组件中配置
• 配置说明:
• 个人代码编辑区Demo
• 总结

vue-codemirror

基于 CodeMirror ，适用于 Vue 的 Web 代码编辑器。

使用

1.命令行安装

npm install vue-codemirror --save // cnpm install vue-codemirror --save

如果运行官网例子时, 报错:

@codemirror/lang-javascript
@codemirror/theme-one-dark

可以在终端中安装对应文件, 解决问题

npm i @codemirror/lang-javascript npm i @codemirror/theme-one-dark

2.在需要的组件中配置

<template> <codemirror v-model="code" placeholder="Code gose here..." :style="{ height: '400px' }" :autofocus="true" :indent-with-tab="true" :tabSize="2" :extensions="extensions" @ready="log('ready', $event)" @change="log('change', $event)" @focus="log('focus', $event)" @blur="log('blur', $event)" /> </template> <script> import { Codemirror } from "vue-codemirror"; import { javascript } from "@codemirror/lang-javascript"; import { oneDark } from "@codemirror/theme-one-dark"; import { ref } from "vue"; export default { components: { Codemirror, }, setup() { const code = ref(`console.log('Hello, world!')`); const extensions = [javascript(), oneDark]; return { code, extensions, log: console.log, }; }, }; </script>

配置说明:

个人代码编辑区Demo

代码编辑区

支持代码编辑区, 满足白天/黑夜主题切换, 满足c++/python语言切换

不足, 没有满足代码提示

组件代码 vue3

<template> <button @click="changeTheme($event)">黑夜</button> <button @click="changeMode($event)">C++</button> <codemirror v-model="code" placeholder="Code gose here..." :style="style" :mode="mode" :spellcheck="spellcheck" :autofocus="autofocus" :indent-with-tab="indentWithTab" :tabSize="tabSize" :extensions="extensions" @ready="log('ready', $event)" @change="log('change', $event)" @focus="log('focus', $event)" @blur="useEditedCode" /> </template> <script> import { Codemirror } from "vue-codemirror"; import { python } from "@codemirror/lang-python"; import { cpp } from "@codemirror/lang-cpp"; import { oneDark } from "@codemirror/theme-one-dark"; import "codemirror/addon/hint/show-hint.css"; import { reactive, ref, toRefs } from "vue"; export default { components: { Codemirror, }, setup() { // 数据 const code = ref(``); let selectValue = "cpp"; let dateTime = "黑夜"; const options = reactive({ style: { height: "400px" }, mode: "text/x-c++src", spellcheck: true, autofocus: true, indentWithTab: true, tabSize: 2, extensions: [cpp(), oneDark], //传递给CodeMirror EditorState。创建({扩展}) }); // 方法 // 失去焦点时,使用已编辑的代码 function useEditedCode() { console.log("@@@blur@@@code:", code.value); console.log("@@@blur@@@cpp:", cpp); } // 改变主题 function changeTheme(e) { console.log("options.extensions:", options.extensions); if (e.target.innerHTML === "黑夜") { options.extensions = []; dateTime = e.target.innerHTML = "白天"; } else { options.extensions = [oneDark]; dateTime = e.target.innerHTML = "黑夜"; } } // 改变模式 function changeMode(e) { console.log("selectValue:", selectValue); if (selectValue === "cpp") { if (dateTime === "黑夜") options.extensions = [python(), oneDark]; else options.extensions = [python()]; selectValue = "python"; e.target.innerHTML = "python"; options.mode = "text/x-python"; } else { if (dateTime === "黑夜") options.extensions = [cpp(), oneDark]; else options.extensions = [cpp()]; selectValue = "cpp"; e.target.innerHTML = "C++"; options.mode = "text/x-c++src"; } } // 返回 return { code, selectValue, dateTime, ...toRefs(options), log: console.log, useEditedCode, changeTheme, changeMode, }; }, }; </script>

总结

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