最新回答 / qq_与我无关N_0
                                
                                                            function promiseAnimate(ball,distance){			return new Promise(function(resolve,reject){				function _animate(){					setTimeout(function(){						var marginLeft = parseInt(ball.style.marginLeft,10)						if(marginLeft === distance){							resolve()						}				...
                            
                        
                        2018-10-08