NSDateFormatter 字符串

发布于 2024-10-18 11:37:09 字数 654 浏览 5 评论 0原文

以下日期/时间的 NSDateFormatter 字符串是什么： 02/22/2011 10:43:00 AM

基本上我想要的是读取字符串 02 /22/2011 19:00:23 PM，将其转换为NSDate，然后打印即可。我之前的尝试：

NSDateFormatter* dtFormatter = [[NSDateFormatter alloc] init];
[dtFormatter setDateFormat:@"MM/dd/yyyy HH:mm:ss a"];

NSDate* dt3 = [dtFormatter dateFromString:@"02/22/2011 19:00:23 PM"];
NSString* strDate3 = [dtFormatter stringFromDate:dt3];
NSLog(@"Third = %@",strDate3);

每次我尝试打印 NULL 时，当我删除尾随的 PM 时它就起作用了。

最后，我在上面代码的第二行之后添加了以下几行：

[dtFormatter setPMSymbol:@"PM"];
[dtFormatter setAMSymbol:@"AM"];

原文

What is the NSDateFormatter string for the following date/Time : 02/22/2011 10:43:00 AM

Basically what I wanted was to read a string 02/22/2011 19:00:23 PM, convert it to NSDate and then print is appropriately. My previous attempt:

NSDateFormatter* dtFormatter = [[NSDateFormatter alloc] init];
[dtFormatter setDateFormat:@"MM/dd/yyyy HH:mm:ss a"];

NSDate* dt3 = [dtFormatter dateFromString:@"02/22/2011 19:00:23 PM"];
NSString* strDate3 = [dtFormatter stringFromDate:dt3];
NSLog(@"Third = %@",strDate3);

Every time I tried that it would print NULL, it worked when I removed the trailing PM.

Finally, I added the following lines right after the 2nd line in the code above:

[dtFormatter setPMSymbol:@"PM"];
[dtFormatter setAMSymbol:@"AM"];

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嘦怹 2024-10-25 11:37:09

MM/dd/Y hh:mm:ss a

有关更多信息，请参阅：http://unicode.org/reports/tr35/tr35- 6.html#Date_Format_Patterns

MM/dd/Y hh:mm:ss a

Fore more info see: http://unicode.org/reports/tr35/tr35-6.html#Date_Format_Patterns

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纸伞微斜 2024-10-25 11:37:09

尝试一下，这将为您提供所需的格式。

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"MM/dd/yyyy HH:mm:ss aaa"];

// Conversion of NSString to NSDate
NSDate *dateFromString = [[NSDate alloc] init];
dateFromString = [formatter dateFromString:curDate];   //give what u want to give curDate
[formatter release];

// Conversion of NSDate to NSString
NSString *dateString = [formatter stringFromDate:datePicker.date]; //give date here
[formatter release];

如果您想要来自 NSDate 对象的字符串，这是正确的方法...现在尝试一下，祝你

好运！

Try it this will give you the required format..

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"MM/dd/yyyy HH:mm:ss aaa"];

// Conversion of NSString to NSDate
NSDate *dateFromString = [[NSDate alloc] init];
dateFromString = [formatter dateFromString:curDate];   //give what u want to give curDate
[formatter release];

// Conversion of NSDate to NSString
NSString *dateString = [formatter stringFromDate:datePicker.date]; //give date here
[formatter release];

This is the correct way if you want string from NSDate object...Now try it

Good Luck!

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