ios - IOS 中的日期时间/字符串格式

Question

我有一个 NSString，它是这段代码中的日期和时间:“YYYY-MM-DD HH:mm:SS”，我想像德国风格一样使用它:“DD.MM.YYY HH:mm:DD "

如何解决？

Answer 1

将一个日期字符串转换为另一种格式的示例:

NSString *currentDateString = @"04-08-2012 08:16:00";

NSLog(@"currentDateString: %@", currentDateString);

NSDateFormatter *dateFormater = [[NSDateFormatter alloc] init];

[dateFormater setDateFormat:@"MM-DD-yyyy HH:mm:ss"];
NSDate *currentDate = [dateFormater dateFromString:currentDateString];
NSLog(@"currentDate: %@", currentDate);

[dateFormater setDateFormat:@"yyyy-MM-DD HH:mm:ss"];
NSString *convertedDateString = [dateFormater stringFromDate:currentDate];
NSLog(@"convertedDateString: %@", convertedDateString);

[dateFormater setDateFormat:@"DD.MM.yyy HH:mm:DD"];
NSString *germanDateString = [dateFormater stringFromDate:currentDate];
NSLog(@"germanDateString: %@", germanDateString);

NSLog输出:
当前日期字符串:04-08-2012 08:16:00
当前日期:2012-04-01 12:16:00 +0000
convertedDateString: 2012-04-92 08:16:00
germanDateString: 92.04.2012 08:16:92