ios 自定义时间日期格式

        CFLocaleRef currentLocale=CFLocaleCopyCurrent();

        CFDateFormatterRef customDateFormatter=CFDateFormatterCreate(NULL, currentLocale,kCFDateFormatterNoStyle, kCFDateFormatterNoStyle);

        CFStringRef customDateFormat=CFSTR("yyyy-MM-dd HH:mm:ss");

        CFDateFormatterSetFormat(customDateFormatter, customDateFormat);

        CFStringRef customFormattedDateString=CFDateFormatterCreateStringWithDate(NULL, customDateFormatter,(CFDateRef)[NSDatedate]);

ok，在 release ：

        CFRelease(currentLocale);

        CFRelease(customDateFormatter);

        CFRelease(customFormattedDateString);