1)先上效果图

image.png

2)代码块

  <template>
    <div class="home">
        <div class="header">
            <div class="left">
                <van-icon name="smile-o" size="34" />
            </div>
            <div class="center">
                <span class="iconfont iconsearch"></span>
                <span class="text">搜索物料</span>
            </div>
            <div class="right">
                <span class="iconfont iconwode"></span>
            </div>
        </div>
    </div>
</template>

<script>
</script>

<style lang="less" scoped>
    .header{
        height: 50px;
        line-height: 50px;
        background-color: red;
        color: white;
        display: flex;
        padding-left: 10px;
        align-items:center;//垂直居中布局
    
        .left,.right{
            width: 60px;
            height: 50px;
            line-height: 50px;
            text-align: center;
        }
        .left{
            padding-top: 18px;
        }
        .center{
            flex: 1;
            height: 34px;
            line-height: 34px;
            background-color: rgba(255,255,255,0.5);
            text-align: center;
            border-radius: 17px;
            .text{
                font-size: 16px;
            }
        }
        .iconwode{
            font-size: 24px;
        }
        .iconnew{
            font-size: 50px;
        }
    }
</style>

总结

1.采用flex布局,让三个div垂直居中布局。
2.希望此教程可以帮助到你们。❤❤❤