xcode 如何在iphone中连接三个字符串
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/10994343/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to concatenate three string in iphone
提问by The Developer
I have three string and I want them to concatenate but they are not concatenating. I am using this code.
我有三个字符串，我希望它们连接但它们没有连接。我正在使用此代码。
I want my last string to display like this:
我希望我的最后一个字符串显示如下：
Cerenia Results 12Jun 2012.pdf
Cerenia 结果 2012 年 6 月 12 日.pdf
like this
像这样
NSString *fileName = @"Cerenia Results";
NSString* str = [formatter stringFromDate:date];
NSString*extention=@".pdf";
NSString * strRR = [NSString stringWithFormat:@"Cerenia Results_%@ [%@].pdf", extension];
回答by Future2020
General case: to concatenate all three strings you should use
一般情况：要连接您应该使用的所有三个字符串
NSString * strRR = [NSString stringWithFormat:@"%@%@%@", fileName, str, extension];
Your case:
你的情况：
You can add any formatting you like such as inserting characters in between (to get the results you are after >> Cerenia Results 12Jun 2012.pdf)
您可以添加任何您喜欢的格式，例如在中间插入字符（以获得您想要的结果 >> Cerenia 结果 12Jun 2012.pdf）
[formatter setDateFormat:@"ddMMMyyyy"]
NSString* fileName = @"Cerenia Results";
NSString* str = [formatter stringFromDate:date];
NSString* extension = @"pdf";
NSString* strRR = [NSString stringWithFormat:@"%@ %@.%@", fileName, str, extension];
回答by Paresh Navadiya
Do this:
做这个：
[formatter setDateFormat:@"ddMMMyyyy"]
NSString* str = [formatter stringFromDate:date];
NSString * strRR = [NSString stringWithFormat:@"Cerenia Results %@.pdf",str];
回答by TheTiger
You can append string using "stringByAppendingFormat" ...
您可以使用“ stringByAppendingFormat”附加字符串...
[formatter setDateFormat:@"ddMMMyyyy"]
NSString* fileName = @"Cerenia Results";
NSString* str = [formatter stringFromDate:date];
NSString* extension = @".pdf";
NSString* strRR = [[fileName stringByAppendingFormat:str]stringByAppendingFormat:extension];
