VUE3 插件 vue-codemirror 使用步骤和实例、基于 CodeMirror ，适用于 Vue 的 Web 代码编辑器。
第一步：安装 vue-codemirror & codemirror 包 ， 以及语言包
npm install codemirror --save
npm install vue-codemirror --savenpm install @codemirror/lang-javascript --save
npm install @codemirror/lang-python --savenpm install @codemirror/lang-cpp --save
npm install @codemirror/theme-one-dark --save第二步：在需要的组件中配置
src\components\code\Index.vue
<script setup>
import {watch, ref, toRefs , computed
} from 'vue';
import { Codemirror } from 'vue-codemirror';
import { javascript } from '@codemirror/lang-javascript';
import { python } from '@codemirror/lang-python';
import { oneDark } from '@codemirror/theme-one-dark';
const code = ref('');
const props = defineProps({modelValue: {type: String,required: false,default: ''},language: {type: String,default: 'javascript'},disabled: {type: [String, Boolean],default: false},style: {type: [Object],default: () => ({height: '400px'})}
})
const emit = defineEmits(['update:modelValue'])
const {modelValue, language, disabled, style } = toRefs(props)
const fullScreen = ref(false);
const lang = { javascript, python }[language.value];
const extensions = [lang(), oneDark]
watch(() => modelValue.value, (val) => {code.value = val;
});
watch(code.value, (val) => {emit('update:modelValue', val);
});
const comStyle = computed(() => ({ ...style.value, ...{ height: fullScreen.value ? '100%' : '400px' } }));
</script>
<template><Codemirror :disabled="disabled" v-model="code" placeholder="暂无数据..." :style="comStyle" :autofocus="true":indent-with-tab="true" :tabSize="2" :fullScreen="true" :extensions="extensions" @ready="() => {}" @change="() => {}"@focus="() => {}" @blur="() => {}"></Codemirror>
</template>第三步：使用
<script setup lang="ts">
import { ref } from 'vue'
import Code from '@common/code/Index.vue'const fetchTxtFileData = ref('')
</script><template><Code v-model="fetchTxtFileData" :style="{width: '47vw'}"></Code>
</template>第四步：最后效果
