一天以来，我一直在努力找出问题所在，但似乎找不到解决方法。
int person;
-(IBAction)personOne:(id)sender{
[twoPerson stopAnimating];
[fourPerson stopAnimating];
[threePerson stopAnimating];
[onePerson startAnimating];
person = 1;
}
-(IBAction)personTwo:(id)sender{
[threePerson stopAnimating];
[fourPerson stopAnimating];
[onePerson startAnimating];
[twoPerson startAnimating];
person = 2;
}
-(IBAction)personThree:(id)sender{
[fourPerson stopAnimating];
[onePerson startAnimating];
[twoPerson startAnimating];
[threePerson startAnimating];
person = 3;
}
-(IBAction)personFour:(id)sender{
[onePerson startAnimating];
[twoPerson startAnimating];
[threePerson startAnimating];
[fourPerson startAnimating];
person = 4;
}
我想要做的是，如果单击此按钮，则 Person 等于一个整数值。
我没有发现这段代码有任何问题。
然后我有另一个使用 if 语句的按钮。
-(IBAction)go:(id)sender{
ammountDueFloat = ([ammountDue.text floatValue]);
tipPercent1;
findAmmount = tipPercent1 * ammountDueFloat;
NSString *showAmmountText = [[NSString alloc]initWithFormat:@"$%.2f", findAmmount];
showammount.text = showAmmountText;
if (person = 1) {
showPerPerson = findAmmount / 1;
perPersonLabel.text = [[NSString alloc]initWithFormat:@"$%.2f", showPerPerson];
}
if (person = 2) {
showPerPerson = findAmmount / 2;
perPersonLabel.text = [[NSString alloc]initWithFormat:@"$%.2f", showPerPerson];
}
if (person = 3) {
showPerPerson = findAmmount / 3;
perPersonLabel.text = [[NSString alloc]initWithFormat:@"$%.2f", showPerPerson];
}
if (person = 4) {
showPerPerson = findAmmount / 4;
perPersonLabel.text = [[NSString alloc]initWithFormat:@"$%.2f", showPerPerson];
}
else {
showPerPerson = findAmmount / 1;
perPersonLabel.text = [[NSString alloc]initWithFormat:@"$%.2f", showPerPerson];
}
}
每当我点击“执行”按钮时，它总是假定 person 的值是最后一个 if 语句。
有什么想法吗？
最佳答案
用==比较
if(person == 1)
{
//...
}
关于iphone - objective-c if 语句不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6567973/