从xcode中的同一类调用方法

dalvik 发表于 Dev

达尔维克

我想调用方法“ shows（）”，但是为什么我得到“期望的标识符或（和使用未声明的标识符自身”的错误信息

ViewController.m

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
{
    NSDictionary *inventory;
}
- (void)shows;
@end

ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
[super viewDidLoad];
inventory = @{@"Rahul":[NSNumber numberWithInt:11],
              @"iOS":[NSNumber numberWithInt:22]};
// Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

  - (void)shows
    {
      NSLog(@"%@",inventory);
    }


     [self shows];
@end

本尼

您不能[view shows];在类范围内调用，需要在一个方法中viewDidLoad调用它，例如在“像这样调用它”中：

- (void)viewDidLoad {
      [super viewDidLoad];
      inventory = @{@"Rahul":[NSNumber numberWithInt:11],
          @"iOS":[NSNumber numberWithInt:22]};
      // Do any additional setup after loading the view, typically from a nib.
      [self shows];//SHOWS call moved here...

}

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