oc笔记-4

////  main.m//  mylearn//#import <Foundation/Foundation.h>#import "Mypoint.h"@implementation Mypoint{    int myx;    int myy;}-(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)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));}@endint 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];        NSLog(@"dist:%i",[Mypoint distx1:10 distx2:6 disty1:9 disty2:28]);        NSLog(@"point:");        NSLog(@"%i",[mypoint myx]);        [mypoint print];    }    return 0;}