ios - NSDateFormatter 中的无效日期

Question

self.dateFormatter = [[NSDateFormatter alloc] init];
[self.dateFormatter setTimeZone:[NSTimeZone timeZoneWithName:@"UTC"]];
[self.dateFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]];
[self.dateFormatter setDateFormat:@"yyyyMMdd"];

NSDate *date = [NSDate date];
NSString *dateString = [self.dateFormatter stringFromDate:date];

此代码有时会为我返回不正确的日期，例如 201300090005。我不明白为什么。

Answer 1

我试过这样的东西，但它对我来说总是很好:-

NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init]autorelease];
[dateFormatter setTimeZone:[NSTimeZone timeZoneWithName:@"UTC"]];
[dateFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]];
[dateFormatter setDateFormat:@"yyyyMMdd"];

NSDate *date = [NSDate date];
NSString *dateString = [dateFormatter stringFromDate:date];
NSLog(@"yourDateString=%@",dateString);