#import <Foundation/Foundation.h>

@interface Calculator : NSObject
+(void)add:(int)num1 andNmu2:(int)num2;
+(void)jian:(int)num1 andNmu2:(int)num2;
+(void)cheng:(int)num1 andNmu2:(int)num2;
+(void)chu:(int)num1 andNmu2:(int)num2;
@end


#import "Calculator.h"

@implementation Calculator
+(void)add:(int)num1 andNmu2:(int)num2{

    NSLog(@"两数相加得%d",num1+num2);
}
+(void)jian:(int)num1 andNmu2:(int)num2{

    NSLog(@"两数相减得%d",num1-num2);

}
+(void)cheng:(int)num1 andNmu2:(int)num2{

    NSLog(@"两数相乘得%d",num1*num2);

}
+(void)chu:(int)num1 andNmu2:(int)num2{

    NSLog(@"两数相除得%.2f",(float)num1/num2);

}

@end



#import <Foundation/Foundation.h>
#import "Calculator.h"
int main(int argc, const char * argv[]) {
    @autoreleasepool {
      
        [Calculator add:17 andNmu2:7];
        [Calculator jian:27 andNmu2:17];
        [Calculator cheng:37 andNmu2:27];
        [Calculator chu:47 andNmu2:37];
    }
    return 0;
}

en~不错   

涨知识了··   

66666不错啊

liuch111 发表于 2015-11-3 21:46
涨知识了··

你涨了多少了,看你一直再涨?

我的黑马金币ｉ，摩擦摩擦

涨知识了··   

看不懂啊~~~~~~~~~~