OC-8

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////  ViewController.m//  test////  Created by myhaspl on 16/12/6.//  Copyright (c) 2016年 myhaspl@myhaspl.com. All rights reserved.//#import "ViewController.h"@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // D/Users/liuxing/Documents/pro/test/test/ViewController.mo any additional setup after loading the view, typically from a nib.}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}- (IBAction)langselect:(UIButton *)sender {    nowlang=nowlang ^ 1 ;    if (nowlang==1){    NSString *myTitle=@"OK";    [_langbtn setTitle:myTitle forState:UIControlStateNormal];    self.mylabel.text=@"hello world";    }    else{        NSString *myTitle=@"确定";        [_langbtn setTitle:myTitle forState:UIControlStateNormal];        self.mylabel.text=@"你好，世界";    }}@end

////  ViewController.h//  test////  Created by myhaspl on 16/12/6.//  Copyright (c) 2016年 myhaspl@myhaspl.com. All rights reserved.//#import <UIKit/UIKit.h>@interface ViewController : UIViewController{int nowlang;}@property (weak, nonatomic) IBOutlet UIButton *langbtn;@property (weak, nonatomic) IBOutlet UILabel *mylabel;- (IBAction)langselect:(UIButton *)sender;@end

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