objective-c - NSDateFormater 带前导零

Question

如何获得前导零的日、分和秒？

NSDateFormatter *lDateFormatter = [[NSDateFormatter alloc] init];
[lDateFormatter setDateFormat:@"LL-d-yyyy-H-m-s"];  
NSString *lTime = [lDateFormatter stringFromDate:[NSDate date]];
// Output : 04-3-2013-14-4-1

Answer 1

您添加了两次日期说明符：LL-dd-yyyy-HH-mm-ss

NSDateFormatter *lDateFormatter = [[NSDateFormatter alloc] init];
[lDateFormatter setDateFormat:@"LL-dd-yyyy-HH-mm-ss"];
NSString *lTime = [lDateFormatter stringFromDate:[NSDate date]];
NSLog(@"Date: %@", lTime);      

将输出：Date: 04-15-2013-12-04-51

Answer 2

使用MM-dd-yyyy-HH-mm-ss格式