deltaTime查询一大串1444051855880什么原因
function gameloop(){
window.requestAnimFrame(gameloop);//当前绘制完后 根据机器的性能来绘制下一针
var now=Date.now();
deltaTime=now-lastTime;
lastTime=now;
drawBackground();
ane.draw();
fruit.draw();
}
fruitObj.prototype.draw=function(){
for(var i=0; i<this.num;i++){
if(deltaTime>100){document.getElementById("tc").innerHTML=deltaTime;}
}
}
