我有一个包含5张图像的数组。每5秒后，我希望在每次调用nextImage()函数时显示数组中的下一个元素。vartimer=Timer()vararrayPhoto:[UIImage]=[UIImage(named:"1.jpg"!,UIImage(named:"2.jpg"!,UIImage(named:"3.jpg"!,UIImage(named:"4.jpg"!,UIImage(named:"5.jpg"!,]funcnextImage(){//Displays1.jpgwhenitfirstgoesintothenextImage()function//Subsequently