//
//  main.m
//  mylearn
//

#import <Foundation/Foundation.h>
#import "Mypoint.h"
@implementation Mypoint
@synthesize z;
-(void) print{
    NSLog(@"(%i,%i)",myx,myy);
}
-(void)setx:(int)x{
    myx=x;
}
-(void)sety:(int)y{
    myy=y;
}
-(int) myx{
    return myx;
}
-(int) myy{
    return myy;
}

-(void) sayz{
    NSLog(@"%i，%i,%i",myx,myy,z);
}

+(void)sayhello{
    NSLog(@"hello");
}

-(int)distx1:(int)x1 distx2:(int)x2 disty1:(int)y1 disty2:(int)y2{
    return (int)sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
}
@end

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        // insert code here...
        Mypoint *mypoint;
        [Mypoint sayhello];
        mypoint=[Mypoint alloc];
        mypoint=[mypoint init];
        [mypoint setx:10];
        [mypoint sety:20];
        [mypoint setZ:16];
        [mypoint sayz];
        NSLog(@"dist:%i",[mypoint distx1:10 distx2:6 disty1:9 disty2:28]);
        NSLog(@"point:");
        NSLog(@"%i",[mypoint myx]);
        [mypoint print];
    }
    return 0;
}

//
//  Mypoint.h
//  mylearn
//


#ifndef mylearn_Mypoint_h
#define mylearn_Mypoint_h

@interface Mypoint:NSObject
{
    int myx;
    int myy;
}
@property int z;

-(void) print;
-(void) setx:(int)x;
-(void) sety:(int)y;
-(int) myx;
-(int) myy;
-(void) sayz;
+(void)sayhello;
-(int)distx1:(int)x1 distx2:(int)x2 disty1:(int)y1 disty2:(int)y2;

@end

#endif

2016-09-07 21:39:21.980 mylearn[621:52408] hello

2016-09-07 21:39:21.981 mylearn[621:52408] 10，20,16

2016-09-07 21:39:21.982 mylearn[621:52408] dist:19

2016-09-07 21:39:21.982 mylearn[621:52408] point:

2016-09-07 21:39:21.982 mylearn[621:52408] 10

2016-09-07 21:39:21.982 mylearn[621:52408] (10,20)