我正在制作二进制计算器应用程序。 没有构建时间问题,但在应用程序中只添加二进制数给出正确的答案,乘法,减法和除法不会。
我尝试使代码更具说明性,并且它在操场上工作(以print()结尾)但是当我更改应用代码时,答案是相同的。
var numberOnScreen:Int = 0;
var previousNumber:Int = 0;
var doingMath = false
var operation = 0;
var decimal = 0;
var decimal1 = 0;
var binary:String = ""
var binary1:String = ""
@IBOutlet weak var label: UILabel!
@IBAction func Numbers(_ sender: UIButton) {
if doingMath == true
{
label.text = String(sender.tag-1)
numberOnScreen = Int(label.text!)!
doingMath = false
}
else
{
label.text = label.text! + String(sender.tag-1)
numberOnScreen = Int(label.text!)!
}
}
@IBAction func buttons(_ sender: UIButton) {
if label.text != "" && sender.tag != 6 && sender.tag != 8
{
previousNumber = Int(label.text!)!
binary = "\(previousNumber)"
decimal = Int(binary, radix: 2)!
binary1 = "\(numberOnScreen)"
decimal1 = Int(binary1, radix: 2)!
operation = sender.tag
doingMath = true;
}
else if sender.tag == 8
{
if operation == 3 //adding
{
label.text = String((decimal + decimal1), radix: 2)
}
else if operation == 4 //subtracting
{
label.text = String((decimal - decimal1), radix: 2)
}
else if operation == 5 //multiplying
{
label.text = String((decimal * decimal1), radix: 2)
}
else if operation == 7 //dividing
{
label.text = String((decimal / decimal1), radix: 2)
}