<view class="cart">
	<view bindtap="minus" class="minus">
		<view class="iconfont icon-minus"></view>
	</view>
	<input bindblur="setInput" disabled="{{disabled}}" class="input" type="digit" value="{{num==0?'':num}}" />
	<view bindtap="add" class="add">
		<view class="iconfont icon-add2"></view>
	</view>
</view>