ios NSDateFormatter "Month" 用 3 个字母代替完整的单词
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NSDateFormatter "Month" in 3 letters instead of full word
提问by bruno
NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"dd-MM-YYYY HH:mm"];
[formatter setTimeZone:[NSTimeZone systemTimeZone]];
If i choose MMi get the month in number: 09-05-2012 15:33If i choose MMMMi get the month in word: 09-May-2012 15:33
如果我选择，MM我会得到月份：09-05-2012 15:33如果我选择，MMMM我会得到月份：09-May-2012 15:33
What i wanted, was the month in 3 letters abbreviation.
Eg: Januarywould be Jan
我想要的是 3 个字母缩写的月份。
例如：January会Jan
In this case May is correct because it only has 3 letters.
在这种情况下 May 是正确的，因为它只有 3 个字母。
回答by graver
Have you tried: [formatter setDateFormat:@"dd-MMM-YYYY HH:mm"];and then [formatter stringFromDate:someNSDate];
你有没有试过：[formatter setDateFormat:@"dd-MMM-YYYY HH:mm"];然后[formatter stringFromDate:someNSDate];
回答by Dan Lingman
IF you get the two things in the wrong order, you don't get the expected output.
如果你以错误的顺序得到这两件事，你就不会得到预期的输出。
[formatter setDateFormat:@"MMM"];
[formatter setDateStyle:NSDateFormatterMediumStyle];
does NOT give the same results as:
不会给出与以下相同的结果：
[formatter setDateStyle:NSDateFormatterMediumStyle];
[formatter setDateFormat:@"MMM"];
(The second of these two snippets is now happily handing out Sep Oct etc in my app)
（这两个片段中的第二个现在很高兴在我的应用程序中分发 Sep Oct 等）
回答by hellosheikh
In SWIFT
在SWIFT
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "dd MMM yyyy HH:mm"
dateFormatter.stringFromDate(NSDate())
回答by CodeBender
This is a stripped down solution that works with Swift 4 in producing a 3 letter month output:
这是一个精简的解决方案，可与 Swift 4 一起生成 3 个字母的月份输出：
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd MMM YYYY, HH:mm:ss"
And to verify:
并验证：
print(dateFormatter.string(from: Date())) // 20 Mar 2018, 23:41:40
As previously noted, MMMis the correct syntax for getting the desired month output.
如前所述，MMM是获取所需月份输出的正确语法。
回答by ingconti
for swift 4 go with:
对于 swift 4，请使用：
if let dateFormatter = DateFormatter(){
dateFormatter.dateStyle = .medium
// eventually:
//let locale = Locale(identifier: ...
//dateFormatter!.locale = locale
dateFormatter.dateStyle = .medium
dateFormatter!.dateFormat = "dd MMM YYYY, HH:mm:ss"
} else..
..
回答by Alladinian
Actually you can set your dateStyle to medium (ie 'Jan', 'Feb' etc) like this:
实际上，您可以将 dateStyle 设置为中等（即“Jan”、“Feb”等），如下所示：
[formatter setDateStyle:NSDateFormatterMediumStyle];
回答by Totoro
For those who do not get a full month strong with "MMM", you can get it with
对于那些没有通过“MMM”获得整整一个月强壮的人，您可以通过
dateFormatter.dateFormat = "dd MMMM yyyy"
Tested on Swift 4.2
在 Swift 4.2 上测试
