小程序 使用定时器

 startSetInter: function(){      var that = this;      //将计时器赋值给setInter      
that.data.setInter = setInterval(          function () {              var 
numVal = that.data.num + 1;              that.setData({ num: numVal });
              console.log('setInterval==' + that.data.num);          }    ,
2000);     },  endSetInter: function(){      var that = this;      //清除计时器 
即清除setInter      clearInterval(that.data.setInter)  },  onHide: function () {   
},  onUnload: function () {      var that =this;      //清除计时器  即清除setInter      
clearInterval(that.data.setInter)  },

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