struct Date = { int year; int month; int day; }; struct Date d = {2013,8,17}; d.day = 6;
或者
typedef struct Date = { int year; int month; int day; } Date; Date d = {2013, 9, 18};
NSRange得使用
NSRange range = NSMakeRange(8, 10); range.location range.length //转变成字符串打印出来 NSString *str = NSStringFromRange(8, 11); NSLog(@"%@", str);
NSPoint得使用
//x = 10, y = 9 NSPoint p = NSMakePoint(10,9); NSString *str = NSStringFromPoint(p); NSLog(@"%@", str);
NSSize得使用
//NSSize包括width和height NSSize s = NSMakeSize(100, 50); NSString *str = NSStringFromSize(s);
NSRect得使用
//NSRect包括origin和size NSRect r = NSMakeRect(10,5, 100, 100); NSString *str = NSStringFromRect(r);