一，代码：
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<template> <div class="hello"> <div>页面宽度:{{screenWidth}}px</div> <h1>{{ msg }}</h1> <div v-if="screenWidth < 768">小屏幕布局</div> <div v-else-if="screenWidth < 992">中屏幕布局</div> <div v-else>大屏幕布局</div> </div></template><script>import { ref,onMounted,onUnmounted } from 'vue';export default { name: 'HelloWorld', setup() { //获取屏幕宽度 const screenWidth = ref(window.innerWidth); //处理resize const handleResize = () => { screenWidth.value = window.innerWidth } //加载页面时，添加对resize的响应 onMounted(() => { window.addEventListener("resize", handleResize) }) //页面umount时，移除监听事件 onUnmounted(() => { window.removeEventListener('resize', handleResize); }) return { screenWidth, } },}</script><!-- Add "scoped" attribute to limit CSS to this component only --><style scoped>h3 { margin: 40px 0 0;}ul { list-style-type: none; padding: 0;}li { display: inline-block; margin: 0 10px;}a { color: #42b983;}</style> |
二，测试效果:
说明：刘宏缔的架构森林—专注it技术的博客，
网站：https://blog.imgtouch.com
原文: https://blog.imgtouch.com/index.php/2023/09/09/vue-js-xiang-ying-shi-bu-ju-vue-3-3-4/
代码: https://github.com/liuhongdi/ 或 https://gitee.com/liuhongdi
说明：作者:刘宏缔 邮箱: 371125307@qq.com
三，查看vue版本:
root@lhdpc:/data/vue/responsive# npm list vue
responsive@0.1.0 /data/vue/responsive
├─┬ @vue/cli-plugin-babel@5.0.8
│ └─┬ @vue/babel-preset-app@5.0.8
│ ├─┬ @vue/babel-preset-jsx@1.4.0
│ │ └── vue@3.3.4 deduped
│ └── vue@3.3.4 deduped
└─┬ vue@3.3.4
└─┬ @vue/server-renderer@3.3.4
└── vue@3.3.4 deduped