css flex 布局 flex-wrap: wrap； 一行中的最后一个去除间距

? ? ? ?&:not(:nth-child(4)) {

? ? ? ? ? ? margin-right: 26rpx;

? ? ? ? ? }

      <!-- 运输方式(选填) -->
      <view class="optional_item_jiaoCangDi">
        <view class="jiaoCangDi_title">运输方式(选填)</view>
        <view class="jiaoCangDi_item">
          <label
            class="jiaoCangDi_item_label"
            v-for="(item2, index2) in channelTypeOptions"
            @click="jiaoCangDiItemTap(item, index1, 1)"
            :class="{ jiaoCangDi_active: channelTypeActive === index2 }"
            :key="index2"
            >{{ item2.info }}</label
          >
        </view>
      </view>

      .jiaoCangDi_item {
        display: flex;
        flex-wrap: wrap;
        .jiaoCangDi_item_label {
          width: 144rpx;
          height: 64rpx;
          text-align: center;
          line-height: 64rpx;
          background: #f1f3f5;
          border-radius: 8rpx 8rpx 8rpx 8rpx;
          font-size: 26rpx;
          color: #5b5b5b;
          margin-bottom: 24rpx;
          &:not(:nth-child(4)) {
            margin-right: 26rpx;
          }

          &.jiaoCangDi_active {
            background: #ffce00;
            font-weight: 700;
          }
        }
      }