效果：

代码：

<template>
	<view class="content">
		<view class="tab">
			<view v-for="(item,index) in dataList" :key="index" class="tab_item" @click="slideTab(index)">
				{{item}}
			</view>
		</view>
		<view class="line">
			<view class="slide" :style="tabStyle">
			</view>
		</view>
	</view>
</template>
<script>
	export default {
		data() {
			return {
				dataList:["用户管理", "配置管理","角色管理","定时任务"],
				tabStyle: null,
			}
		},
		methods: {
			slideTab(index) {
				this.tabStyle = "transform: translateX(" + 100 *index + "px);"
			}
		}
	}
</script>
<style lang="less" scoped>
	.content {
		margin: 0 20px;
	}

	.tab {
		display: flex;

		.tab_item {
			width: 100px;
		}
	}

	.line {
		width: 100%;
		height: 2px;
		background-color: #ccc;
		margin-top: 20px;
		position: relative;

		.slide {
			position: absolute;
			top: 0;
			left: 0;
			width: 66px;
			height: 2px;
			background-color: #55aaff;
			transition: transform 0.5s;
		}

	}
</style>