一键复制：基于vue实现的tab切换效果

需求：顶部栏有切换功能，内容区域随顶部切换而变化

实现效果

如下
在这里插入图片描述

实现代码

组件代码 MoTab.vue

<template><div class="mo-tab"><divv-for="item in options"class="mo-tab__item":class="{'mo-tab__item--active': item.value == currentValue,}"@click="handleChange(item.value)">{{ item.label }}</div></div>
</template><script>
// created at 2024-05-08
export default {name: "MoTab",props: {// 选项// eg: [{label: '显示值', value: '真实值'}]options: {type: Array,default: () => {return [];},},// 选定值value: {type: String,default: "",},},computed: {currentValue: {get() {return this.value;},set(val) {this.$emit("input", val);},},},methods: {handleChange(value) {this.currentValue = value;this.$emit("on-change", value);},},
};
</script><style lang="less">
.mo-tab {display: flex;margin-left: 20px;
}.mo-tab__item {position: relative;padding: 0 10px;line-height: 30px;font-size: 13px;color: #666;cursor: pointer;
}.mo-tab__item:hover,
.mo-tab__item--active {color: #111;
}.mo-tab__item--active::before {content: "";position: absolute;height: 2px;width: 16px;left: 50%;transform: translateX(-50%);bottom: 0;background-color: #6833cf;
}</style>

使用示例

<template><div class="app"><MoTab:options="options"v-model="value"@on-change="handleValueChange"></MoTab><div class="content"><p>选定真实值: {{ value }}</p><p>选定显示值: {{ currentLabel }}</p></div></div>
</template><script>
// created at 2023-03-31
import MoTab from "./components/MoTab/MoTab.vue";export default {name: "App",props: {},components: {MoTab,},data() {return {// 选定值value: "1",// 选项options: [{value: "1",label: "蔬菜",},{value: "2",label: "肉类",},{value: "3",label: "水果",},],};},computed: {currentLabel() {return this.options.find((item) => item.value === this.value)?.label;},},methods: {handleValueChange(value) {console.log("value change: ", value);},},created() {},
};
</script><style lang="less">
.app {width: 200px;margin: 0 auto;border: 1px solid #ccc;padding: 20px;
}.content {margin-top: 20px;border-top: 1px solid #ccc;
}
</style>