没有可见的@interface

Question

以下代码给出了一个错误：“BankAccount没有可见的@interface声明选择器getAccountNumber” 为什么？请帮忙

// BankAccount.h  
#import <Foundation/Foundation.h>  
@interface BankAccount: NSObject  
@property long accountNumber;  
@end  

// BankAccount.m  
#import "BankAccount.h"  
@implementation BankAccount  
@end

//main.m  
#import <Foundation/Foundation.h>  
#import "BankAccount.h"  
int main (int argc, const char * argv[])  {  
    BankAccount *account1 = [[BankAccount alloc] init];  
    [account1 setAccountNumber: 34543212];  
    NSLog(@" Account No = %li",  [account1 getAccountNumber]);  
    return 0;  
}

Answer 1

生成的getter为accountNumber，而不是getAccountNumber。

Answer 2

将[account1 getAccountNumber]更改为[account1 accountNumber]。