直接上代码:
#import <Foundation/Foundation.h>@interface Fraction : NSObject@property int numerator, denominator;-(void) print;
-(double) converToNum;
-(void) setTo : (int) n : (int) d;
@end#import "Fraction.h"@implementation Fraction@synthesize numerator , denominator;-(void) setTo: (int) n : (int) d{
numerator = n;
denominator = d;
}-(void) print{
NSLog(@"%i/%i", numerator ,denominator);
}-(double) convertToNum{
if(denominator != 0)
return (double) numerator / denominator;
else
return NAN;
}
@end#import "Fraction.h"int main(int argc, char *argv[]){
@autoreleasepool{
Fraction *myFraction = [[Fraction alloc] init];
//[myFraction setNumerator: 2];
//[myFraction setDenominator: 7];
[myFraction setTo :1 :2]; NSLog(@"The value of myFraction is:");
[myFraction print]; }
return 0;
} 求解 !谢谢了 100分奉上
#import <Foundation/Foundation.h>@interface Fraction : NSObject@property int numerator, denominator;-(void) print;
-(double) converToNum;
-(void) setTo : (int) n : (int) d;
@end#import "Fraction.h"@implementation Fraction@synthesize numerator , denominator;-(void) setTo: (int) n : (int) d{
numerator = n;
denominator = d;
}-(void) print{
NSLog(@"%i/%i", numerator ,denominator);
}-(double) convertToNum{
if(denominator != 0)
return (double) numerator / denominator;
else
return NAN;
}
@end#import "Fraction.h"int main(int argc, char *argv[]){
@autoreleasepool{
Fraction *myFraction = [[Fraction alloc] init];
//[myFraction setNumerator: 2];
//[myFraction setDenominator: 7];
[myFraction setTo :1 :2]; NSLog(@"The value of myFraction is:");
[myFraction print]; }
return 0;
} 求解 !谢谢了 100分奉上
[myFraction setTo :1 :2];换成
[myFraction setTo :1 d:2];调用时
[myFraction setTo :1 d:2];
如果你在同一个文件中实现,需要去掉:所有的#import 除了,#import <Foundation/Foundation.h>
如果在多个文件中实现,则需要自己创建多个文件。
另外,你的实现函数convertToNum,比上面的定义多了一个"t"
希望对你有所帮忙。