欢迎使用CSDN-markdown编辑器

NSString *name;

NSString *name;

- (void)applicationDidEnterBackground:(UIApplication *)application {

typedef NS_ENUM(NSInteger, UIButtonType) {
UIButtonTypeDetailDisclosure,
UIButtonTypeInfoLight,
UIButtonTypeInfoDark,
UIButtonTypeContactAdd,
};

struct CLLocationCoordinate2D {
CLLocationDegrees latitude;
CLLocationDegrees longitude;
};

textView.textViewShouldBeginEditing = ^(UITextView *textView){

return YES;
};

}

if (1 == 1) {//判断是否为真

//代码

}//判断是否为真

for (i=1; i++; i<=7)

for (i=1; i++; i<=NUM_DAYS_IN_WEEK)

CGRect frame = self.view.frame;

CGFloat x = CGRectGetMinX(frame);

CGFloat y = CGRectGetMinY(frame);

CGFloat width = CGRectGetWidth(frame);

CGFloat height = CGRectGetHeight(frame);

CGRect frame = CGRectMake(0.0, 0.0, width, height);

- (instancetype)init

{

self = [super init];

if (self) {

//代码

}

return self;

}

+ (instancetype)sharedInstance

{

static id instance = nil;

static dispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

sharedInstance = [[self alloc] init];

});

return instance;

}

//普通常量

static const NSTimeInterval ANIMATION_DURATION = 0.3;

//外部常量

extern const NSTimeInterval TYANIMATION_DURATION;