1  onSubmit() {
 2     //定义一个空数组
 3     let activeLabel = []
 4     this.data.lableList.map((item)=>{
 5       if(item.activeIndex != null){
 6         //获取到child的所需携带的索引值,赋值给标签
 7         let label = item.child[item.activeIndex]
 8         label.type = item.type
 9         activeLabel.push(label)
10       }
11     });
12     let pages = getCurrentPages();
13     let prevPage = pages[pages.length - 2]; //上一个页面
14     prevPage.setData({
15       activeLabel: activeLabel
16     })
17     wx.navigateBack()
18   },