Objective-C 类的基础程序
2014-04-10 16:53
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#import <Foundation/Foundation.h> @interface Fraction:NSObject { @private//访问权限有public,protected,private ,三种,若未指定,缺省为protected int numbertor; int denomiator; } -(void) print; -(void) setNumerator: (int) n; -(void) setDenomiator: (int) d; //数据封装 -(int)numbertor; -(int)denomiator; @end @implementation Fraction -(void) print{ //return ((@"%i/%i",numbertor,denomiator)); NSLog(@"%i/%i",numbertor,denomiator); } -(void) setNumerator: (int) n{ numbertor=n; return ; } -(void) setDenomiator:(int)d{ denomiator=d; return ; } -(int)numbertor{ return numbertor; } -(int)denomiator{ return denomiator; } @end int main(int argc, const char * argv[]) { @autoreleasepool { // insert code here... // NSLog(@"Hello, World!"); Fraction *myFraction=[[Fraction alloc] init]; [myFraction setNumerator:1]; [myFraction setDenomiator:3]; NSLog(@"The value is"); [myFraction print]; NSLog(@"%i %i ",[myFraction numbertor],[myFraction denomiator]); } return 0; }
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