摘要：
Class and Object#import <Foundation/Foundation.h>@interface Car : NSObject{int year;NSString *make;NSString *model;}- (void) setMake:(NSString *) aMake andModel:(NSString *) aModelandYear: (int) aYear;- (void) printCarInfo;- (int) year;@end1.类首字母要大写，方法则小写，另外OB C 通常对方法是用驼峰命名法(如identifiersLikeTh 阅读全文
