计算器控制台

//main.m主函数

#import<Foundation/Foundation.h>

#import"Program.h"

#import"Yunsuan.h"

#import"Add.h"

#import"Sub.h"

#import"Mul.h"

#import"Div.h"

int  main(intargc,constchar* argv[]) {

@autoreleasepool{

/*

Program *p = [[Program alloc] init];

[p printf:'/' displayConsole:6.0 andB:10.0];

*/

//实例化加法类的对象

Add *a = [[Add alloc]init];

//实例化运算类的对象

Yunsuan *y = [[Yunsuan alloc]init];

//调用对象方法

[yyuansuan:aandNumbera:30andNumberb:2];

//实例化出发类对象

Div *d = [[Divalloc]init];

//调用对象方法

[yyuansuan:dandNumbera:30andNumberb:2];

}

return0;

}

//运算.h文件

#import<Foundation/Foundation.h>

#import"Program.h"

@interface Yunsuan :NSObject

//实例方法的声明

-(void)yuansuan:(Program*)program andNumbera:(double) numbera andNumberb:(double) numberb;

@end

#import"Yunsuan.h"

@implementation Yunsuan

//实例方法的实现

-(void)yuansuan:(Program*)program andNumbera:(double) numbera andNumberb:(double) numberb;

{

//复合

 [program GetResultAddSubMulDiv:numbera andNumberB:numberb];

}

@end

//项目类.h文件

#import<Foundation/Foundation.h>

@interface Program :NSObject

//成员变量

@property(assign,nonatomic)double numberA;

@property(assign,nonatomic)double numberB;

//实例方法声明

-(void)GetResultAddSubMulDiv:(double) numbera andNumberB:(double) numberb;

@end

#import"Program.h"

@implementation Program

//实例方法实现

-(void)GetResultAddSubMulDiv:(double) numbera andNumberB: (double) numberb

{

    NSLog(@"");

}

@end

//加法.h文件

#import"Program.h"

@interface Add :Program

@end

#import"Add.h"

@implementation Add

//父类方法的重写（多态）

-(void)GetResultAddSubMulDiv:(double) numbera andNumberB:(double) numberb;

{

  NSLog(@"结果= %.2f",numbera + numberb);

}

@end

//减法.h文件

#import"Program.h"

@interface Sub :Program

@end

#import"Sub.h"

@implementation  Sub

//父类方法的重写（多态）

-(void)GetResultAddSubMulDiv:(double) numbera andNumberB:(double) numberb;

{

NSLog(@"结果= %.2f",numbera - numberb);

}

@end

//乘法.h文件

#import"Program.h"

@interface  Mul :Program

@end

#import"Mul.h"

@implementation  Mul

//父类方法的重写（多态）

-(void)GetResultAddSubMulDiv:(double) numbera andNumberB:(double) numberb;

{

NSLog(@"结果= %.2f",numbera * numberb);

}

@end

//除法.h文件

#import"Program.h"

@interface  Div :Program

@end

#import"Div.h"

@implementation  Div

//父类方法的重写（多态）

-(void)GetResultAddSubMulDiv:(double) numbera andNumberB:(double) numberb;{

if(numberb !=0) {

NSLog(@"结果= %.2f", numbera / numberb);

}else{

     NSLog(@"除数不能为0");

  }

}

@end

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