高度设置100% 文字垂直居中

    <view class="menu-item">
            <view class="text">
                确定
            </view>

        </view>

.menu-item {
        height: 100%;
        flex: 1;
        text-align: center;
    }

.text {
        margin: 0;
        padding: 0;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
    }