使用NSDateFormatter的日期格式问题

Question

我有一个日期字符串,我想转换为另一种格式.

原始日期字符串示例为: "2013-06-04 02:19:21 +0000"

我想将其转换为 "Wed,Jun 4"

NSString * date_string = @"2013-06-04 02:19:21 +0000";

NSDateFormatter *complexdateFormater = [[NSDateFormatter alloc] init];
[complexdateFormater setDateFormat:@"yyyy-M-DD HH:mm:ss Z"];
 NSDate* complexdate = [complexdateFormater dateFromString:date_string];
NSString *formatString = [NSDateFormatter dateFormatFromTemplate:@"EE, MMM d" options:0
                                                          locale:[NSLocale    currentLocale]];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:formatString];
NSString *todayString = [dateFormatter stringFromDate:complexdate];

但上述案例的今天字符串打印出来:月份为Jan,与原始字符串中的月份值无关.

我哪里错了？

Answer 1

在这里,你去找我的朋友

NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
    [dateFormat setDateFormat:@"EEE, MMM dd"];
    NSString *theDate = [dateFormat stringFromDate:date1];

可能访问此帖子的其他所有人的日期格式器参考.如果它有帮助,请评价它!

/*
     x           number
     xx          two digit number
     xxx         abbreviated name
     xxxx        full name

     a           AM/PM
     A           millisecond of day
     c           day of week (c,cc,ccc,cccc)
     d           day of month
     e           day of week (e,EEE,EEEE)
     F           week of month
     g           julian day (since 1/1/4713 BC)
     G           era designator (G=GGG,GGGG)
     h           hour (1-12, zero padded)
     H           hour (0-23, zero padded)
     L           month of year (L,LL,LLL,LLLL)
     m           minute of hour (0-59, zero padded)
     M           month of year (M,MM,MMM,MMMM)
     Q           quarter of year (Q,QQ,QQQ,QQQQ)
     s           seconds of minute (0-59, zero padded)
     S           fraction of second
     u           zero padded year
     v           general timezone (v=vvv,vvvv)
     w           week of year (0-53, zero padded)
     y           year (y,yy,yyyy)
     z           specific timezone (z=zzz,zzzz)
     Z           timezone offset +0000

     sql         y-M-d H:m:s
     rss         [E, ]d MMM y[y] H:m:s Z|z[zzz]
     */