.flex
  display flex
  align-items: center
.flex-column-center
  display flex
  flex-direction: column
  justify-content: center
  align-items: center
.flex-column-between
  display flex
  flex-direction: column
  justify-content: space-between
  align-items: center
.flex-column-around
  display flex
  flex-direction: column
  justify-content: space-around
  align-items: center
.flex-center
  display flex
  justify-content: center
  align-items: center
.flex-between
  display flex
  justify-content: space-between
  align-items: center
.flex-around
  display flex
  justify-content: space-around
  align-items: center
.flex-wrap
  flex-wrap:wrap
.flex-end
  justify-content: flex-end
.flex-start
  justify-content: flex-start
.flex-column
  flex-direction: column
.flex-align-end
  align-items: flex-end
.flex-align-baseline
  align-items: baseline
.flex1
  flex 1
.flex2
  flex 2
.flex3
  flex 3
// 没有数据时的展示
.null-data
	width 100%
	margin-top 30rpx
	display flex
	align-items center
	flex-direction column 
	justify-content center
	.image
		width 100rpx
		height 100rpx
	view
		margin-top 30rpx
		font-size 32rpx
		color #929292
.end-data
	text-align center
	font-size 32rpx
	color #929292
	line-height 80rpx