常用结构体

NSRange rang1 = {4,5};
NSRange rang2 = NSMakeRange(4, 5);
NSString *str = NSStringFromRange(rang1);
NSLog(@"%@",str);

CGPoint point1 = {0,10};
CGPoint point2 = CGPointMake(0, 10);
NSString *str1 = NSStringFromPoint(point1);
NSLog(@"%@",str1);

CGSize size1 = {100,50};
CGSize size2 = CGSizeMake(100, 50);
NSString *str2 = NSStringFromSize(size1);
NSLog(@"%@",str2);

CGRect rect1 = {10,10,100,50};
CGRect rect2 = CGRectMake(10, 10, 100, 50);
NSString *str3 = NSStringFromRect(rect1);
NSLog(@"%@",str3);