js :    seats[{"xcroord":1,"ycroord":1,"seatcode":"001"},{"xcroord":2,"ycroord":1,"seatcode":"002"}] wxml: <view wx:for="{{rows}}" wx:for-item="columns">     <view wx:for="{{columns}}" wx:for-item="seat">      //当前如果row=1,column=1,则找到seats里面的{"xcroord":1,"ycroord":1,"seatcode":"001"}这条记录，然后再显示seat.code    {{seat.code}}</view> </view> 我的意思是怎么找到这条记录