wxml

<view wx:for="{{result_list}}" wx:key="key" wx:for-item="result" data-id="index">

<button id = "{{index}}" class="cu-btn round bg-blue" bindtap="collect_button">{{result.collect}}</button>

</view>

js

collect_button:function(e){

var result_list = this.data.result_list

var that = this

var id = e.currentTarget.id

for (var i = 0; i < result_list.length;i++){

if(id == i){

result_list[i]['collect'] = '已收藏'

wx.showToast({

title: '收藏成功',

duration:750

})

console.log(result_list[i])

that.setData({

result_list:result_list

})

}

}

},