一、错误方法
bindtap="selected(1)"
二、正确方法
1、首先在标签中使用data-xxx来自定义要传入的数据，xxx代表数据值
2、绑定事件bindtap=xxx
3、在js中使用event.currentTarget.dataset.xxx来取你传入的值
<view wx:for="{{itemList}}" bindtap="selected" data-id="{{item.id}}"><span class="{{item.select ? 'active' : 'noactive'}}">{{item.name}}</span></view> </view>
data: {itemList: [{name: '推荐', id: 0, select: true},{name: 'Xiaomi手机', id: 1, select: false},{name: 'Redmi手机', id: 2, select: false},{name: '游戏手机', id: 3, select: false},{name: '电脑平板', id: 4, select: false},{name: '智能穿戴', id: 5, select: false},{name: '电视', id: 6, select: false},{name: '大家电', id: 7, select: false},{name: '小家电', id: 8, select: false},{name: '智能家居', id: 9, select: false},{name: '出行运动', id: 10, select: false},{name: '日用百货', id: 11, select: false},{name: '儿童用品', id: 12, select: false},]},selected:function(e){console.log(e.currentTarget.dataset.id)},
