Swift基础之UIPickerView和小animate的使用

写一个简单的UIPickerView的使用Demo，比较简单，其中和一个小动画的结合使用

UIPickerView的使用基本上跟OC语言中的一样，就是写法的样式问题，想必开发过OC的应该不需要多讲了，所以只是把代码展示一下，可以自行下载源码学习：

//MARK:--------------按钮点击事件
    func goBtnClick(btn:UIButton) {
        
        if !btn.isSelected {
            
            btn.isSelected = true
            
            myPickerV.selectRow(Int(arc4random()%90)+3, inComponent: 0, animated: true)
            myPickerV.selectRow(Int(arc4random()%90)+3, inComponent: 1, animated: true)
            myPickerV.selectRow(Int(arc4random()%90)+3, inComponent: 2, animated: true)
            myPickerV.selectRow(Int(arc4random()%90)+3, inComponent: 3, animated: true)
            
    
            if String(describing: dataArr1[myPickerV.selectedRow(inComponent: 0)]) == String(describing: dataArr2[myPickerV.selectedRow(inComponent: 1)]) && String(describing: dataArr2[myPickerV.selectedRow(inComponent: 1)]) == String(describing: dataArr3[myPickerV.selectedRow(inComponent: 2)]) && String(describing: dataArr3[myPickerV.selectedRow(inComponent: 2)]) == String(describing: dataArr4[myPickerV.selectedRow(inComponent: 3)]
                
                ) {
                resultLabel.text = "厉害了我的哥！"
            }else{
                resultLabel.text = "再接再厉