当数量不足时，用不显示的元素补足数量，即可完成不满时左对齐
垂直方向设置align-content: flex-start;即可实现换行时无行间距，之后自行设置样式可控制行间距
父元素样式

css">.swiper-item{
display: flex;
align-items: center;
justify-content: space-between;
flex-flow:row wrap;
align-content: flex-start;
}

<view class="swiper_box">
				<swiper :indicator-dots="true" :autoplay="false" :interval="3000" :duration="1000" :indicator-active-color="active_color">
					<swiper-item class="swiper-item " v-for="(v, i) in listTemp" :key="i">
						<view class="cell" v-for="(w, j) in v" :key="j" :class="w.class">
							<text>{{w.txt}}</text>
						</view>
						<view class="" v-for="index of 10-v.length" :key="index"><!--不满十个时，用不现实的元素补足十个-->
							
						</view>
					</swiper-item>
				</swiper>
			</view>

效果：