IOS - NSDate 自己挖的坑，自己跳

NSDate：5是坑啊啊！

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

     [dateFormatter setDateFormat:@"yyyy/MM/dd hh:mm:ss"];

     NSLog(@"0:%@",[dateFormatter stringFromDate:[NSDate date]]);

     [dateFormatter setTimeZone:[NSTimeZone systemTimeZone]];

     NSLog(@"1:%@",[dateFormatter stringFromDate:[NSDate date]]);

     [dateFormatter setTimeZone:[NSTimeZone defaultTimeZone]];

     NSLog(@"2:%@",[dateFormatter stringFromDate:[NSDate date]]);

     [dateFormatter setTimeZone:[NSTimeZone localTimeZone]];

     NSLog(@"3:%@",[dateFormatter stringFromDate:[NSDate date]]);

     [dateFormatter setTimeZone:[NSTimeZone timeZoneWithName:@"Asia/Shanghai"]];

     NSLog(@"4:%@",[dateFormatter stringFromDate:[NSDate date]]);

     [dateFormatter setTimeZone:[[NSTimeZone alloc] initWithName:@"Asia/Shanghai"]];

     NSLog(@"5:%@",[dateFormatter dateFromString:[dateFormatter stringFromDate:[NSDate date]]]);

0:2015/02/03 09:41:14

1:2015/02/03 09:41:14

2:2015/02/03 09:41:14

3:2015/02/03 09:41:14

4:2015/02/03 09:41:14

5:2015-02-03 01:41:14 +0000

附带NSDate详情链接：http://www.cnblogs.com/ios-wmm/archive/2013/04/21/3034204.html