object-c demo例子
先写一个hello.m
#import <Foundation/Foundation.h>?
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@interface Fraction:NSObject{
int number;
int ids;
}
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-(void) print;
-(void) setNumber:(int)n;
-(void) setIds:(int)ids;
@end
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@implementation Fraction
-(void) print{
NSLog(@"(x=%i,y=%i)",number,ids);
}
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-(void) setNumber:(int) n{
number=n;
}
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-(void) setIds:(int)ids{
ids=ids;
}
@end
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int main (int argc, const char *argv[]) {?
NSLog(@"Hello World!\n");?
// printf("%s\n","hello,ducker");
Fraction *fract=[[Fraction alloc] init];
[fract setNumber : 10];
printf("(number=%i)",fract->number);
[fract release];
return 0;?
}
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写一个编译脚本oc
$ cat oc
#!/bin/bash
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gcc -o $1 $2 \
-fconstant-string-class=NSConstantString \
-I /GNUstep/System/Library/Headers/ \
-L /GNUstep/System/Library/Libraries/ \
-lobjc \
-lgnustep-base
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编译：
./oc hello hello.m
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然后执行：
./hello.exe
$ ./hello.exe
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2012-04-09 18:26:02.500 hello[2500] Hello World!
(number=10)
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稍后继续object-c研究
