<view wx:for="array" wx:for-index="idx" wx:key bindtap="bbb"> {{idx}}: {{itemName.message}} </view> 页面是有显示idx的值但是为啥e获取不到这个idx bbb(e){ console.log(e) }, {type: "tap", timeStamp: 19646, target: {…}, currentTarget: {…}, mark: {…}, …} changedTouches: [{…}] currentTarget: {id: "", offsetLeft: 0, offsetTop: 20, dataset: {…}} detail: {x: 38, y: 32} mark: {} mut: false target: {id: "", offsetLeft: 0, offsetTop: 20, dataset: {…}} timeStamp: 19646 touches: [{…}] type: "tap" __proto__: Object