let pageList = this._view._PageC_List;
let pageCount = pageList.getPages().length;   // 获取翻页容器长度
let duration = 3;   // 自动翻页时间,s
let currentPageIndex = 0;  // 当前页数
let direction = 1;       // 翻页方向
let scrollTiem = 1;      //  翻页时间
pageList.schedule(()=>{
    if(currentPageIndex === pageCount-1){
        direction = -1;
    }else if(currentPageIndex === 0){
        direction = 1;
    }
    currentPageIndex += direction;
    pageList.scrollToPage(currentPageIndex,scrollTiem);
},duration)