JavaScript/second.js

// pages/Second/Second.js
var app = getApp()
var Paths = ['曾恬灵','龙思怡', '杨光正 ', '张嘉威', '李玲', '程方磊','陈佳慧','张定坚','吴世胜','黄益民','刘燕玲','赵金改']; //随机滚动的名字序列
var Index = 0;  //初试默认为0

Page({
  /** 
    * 页面的初始数据 
  */  
 data: {  
   Path:Paths[0],  
   title:'Start',      //设按钮文字为Start
   isRunning:false,  
   userInfo:{},     
   },  

  bindViewTap:function(){ 
     wx.navigateTo({   
        url: '../logs/logs',   
         }) 
    }, 
   change:function(e){
      Index++;  
      //当Index>6时，Index=0，即当滚动到最后一个名字时，从头开始滚动，这个数值根据Paths中名字的个数改变
      if (Index>6){   
         Index=0;   
       }  
    this.setData( {   
         Path:Paths[Index]   
            }
            )  
        },  
     guess:function(e){   
      let isRunning = this.data.isRunning;  
      if(!isRunning){     
       this.setData( {        
         title:'Stop',      //按钮上的字变为Stop
          isRunning:true    
           } );    
        this.timer=setInterval((function(){
            this.change()    
           }).bind(this),50 ); //名字滚动的频率
         }   
         else{ this.setData(    
             {       
                title:'Start',              //按钮上的字变为StART
                isRunning:false   
               } 
               );     
         this.timer&&clearInterval(this.timer);    
        } 
       }
    })