私は、このコードを正しくシェイクアウトするのにかなりの時間を費やしています。現在、テキストの最後の行で立ち往生しています。私はコードを一緒に書くのが初めてです。私が学んだことはすべて、オンラインおよびこのサイトを通じて見つかりました。以下の下線付きの注記を参照してください。私の計算が機能するかどうかを確認できるように助けてください...
//.h
@interface ViewController : UIViewController
@property (weak, nonatomic) IBOutlet UITextField *Price87;
@property (weak, nonatomic) IBOutlet UITextField *MPG87;
@property (weak, nonatomic) IBOutlet UITextField *PriceE85;
@property (weak, nonatomic) IBOutlet UITextField *MPGE85;
@property (weak, nonatomic) IBOutlet UITextField *GasTankSize;
- (IBAction)Settings:(id)sender;
- (IBAction)pergallon:(id)sender;
- (IBAction)pertank:(id)sender;
@end
//.m
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController <----------- Getting a Incomplete Implementation here...
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)Settings:(id)sender {
Settings *settings = [[Settings alloc] initWithNibName:nil bundle:nil];
[self presentViewController:settings animated:YES completion:NULL];
}
- (IBAction)addNums:(id)sender {
int a = ([_Price87.text floatValue]);
int b = ([_MPG87.text floatValue]);
int c = ([_PriceE85.text floatValue]);
int d = ([_MPGE85.text floatValue]);
int e = ([_GasTankSize.text floatValue]);
int ans = ((a*e)-((e+(a*e)-(c*e)/b)*d)/e);
[ans setText:[NSString stringWithFormat:@"%i", pergallon]]; <--------- This is the line giving me trouble. I'm getting a "use of undeclaired identifier 'pergallon'
}
@end