iOS调用系统的赋值功能

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    
    UIButton*button=[[UIButton alloc]initWithFrame:CGRectMake(100, 100, 100, 100)];
    [button setTitle:@"按钮" forState:UIControlStateNormal];
    button.backgroundColor=[UIColor redColor];
    [button addTarget:self action:@selector(btnClicked) forControlEvents:UIControlEventTouchUpInside];
    [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [self.view addSubview:button];
    

}

-(void)btnClicked
{
    //昨天刚做了这个功能，巨简单
    UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
    pasteboard.string = @"www.baidu.com";
    if ([pasteboard.string isEqualToString:@"www.baidu.com"])
    {
        NSLog(@"赋值成功");
    }
    else
    {
        NSLog(@"赋值失败");
        
    }
    
}