loadingTimer(){
			clearInterval(this.$el.loading_timer);
			const rotate_angle=30,speed=90;
			this.$el.loading_timer=setInterval(()=>{
				const rotate_el=this.$el.querySelector('.rotate');
				/*获得当前元素是transform值*/
				let origin_angle=rotate_el.style.transform;
				if(origin_angle){
					origin_angle=Number.parseInt(origin_angle.replace(/[^0-9]/ig,''));
				}else{
					origin_angle=rotate_angle;
				};
				rotate_el.style.transform=`rotate(${origin_angle+rotate_angle}deg)`;
				console.log(1231264);
			},speed)
		}