Objective-c 創建類的使用

Objective-c 創建類的使用

以下是我寫的一個實例， 測試Objective-c是如何使用類的

TestClass.h

//
//  TestClass.h
//  TestClass
//
//  Created by exchen on 6/15/15.
//  Copyright (c) 2015 exchen. All rights reserved.
//

#import 

@interface TestClass : NSObject{
    //public成員變量
    @public
    int number1;
    int number2;
    NSString *Nstr;
    char strArray[20];
}

//成員函數聲明
-(void)print;
-(void)calc;
-(NSString*)strAppend:(NSString*) string1:(NSString*) string2;

@end

TestClass.m

//
//  TestClass.m
//  TestClass
//
//  Created by exchen on 6/15/15.
//  Copyright (c) 2015 exchen. All rights reserved.
//

#import "TestClass.h"
#import 

@implementation TestClass

//成員函數實現
-(void) print{
    printf("%d\n",number1);
    NSLog(Nstr);
    printf("%s\n",strArray);
}

-(void) calc{
    number1 += number2;
    printf("%d\n",number1);
}

-(NSString*)strAppend:(NSString*) string1:(NSString*) string2{
    NSString *strRet = [string1 stringByAppendingString:string2];
    return strRet;
}
@end

//
//  main.m
//  TestClass
//
//  Created by exchen on 6/15/15.
//  Copyright (c) 2015 exchen. All rights reserved.
//

#import 

#import "TestClass.h"

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        // insert code here...
        NSLog(@"Hello, World!");
    }
    
    TestClass *tc = [[TestClass alloc] init];  //分配內存
    
    tc->number1 = 1;  //給類成員變量賦值
    tc->number2 = 2;
    [tc calc];       //調用類成員函數
    
    strcpy(tc->strArray,"strArray");   //給類成員字符串變量賦值
    
    [tc print];  //調用類成員函數
    
    NSString *strRet = [tc strAppend:@"string1" :@"string2"];  //調用帶參數的函數
    NSLog(strRet); //打印返回值

    return 0;
}

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