IP属地:北京
,,, @interface ViewController () @property (nonatomic,strong) NSMutableA...
AppDelegate.m
.h {NSString *_name;int _age;}-(void)setName:(NSString *)namea;-(NSStrin...
在 AppDelegate.m 中 ViewController *theVc = [[ViewController alloc]init]; ...
UIImage *newImage = [QRCodeGenerator qrImageForString:self.WEN.text imag...
没有第三方, 直接写代码即可 AppDelegate.m // 只有当应用在前台时,该方法才会被调用 - (void)application:(...