blocks|key|899661|text|尝试：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|899662|NSString+*myString+=+[NSNumber+stringValue];|code-block|syntax|javascript|899663|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try:

<pre><code>NSString *myString = [NSNumber stringValue];
</code></pre>

blocks|key|1114374|text|或者试试NSString+*string+=+[NSString+stringWithFormat:@"%25d",+[NSNumber+intValue],+nil];|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1114375|entityMap^0|4|27|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

or try <code>NSString *string = [NSString stringWithFormat:@"%d", [NSNumber intValue], nil];</code>

blocks|key|899685|text|//An+example+of+implementation+:
//+we+set+the+score+of+one+player+to+a+value
[Game+getCurrent].scorePlayer1+=+[NSNumber+numberWithInteger:1];
//+We+copy+the+value+in+a+NSNumber
NSNumber+*aNumber+=+[Game+getCurrent].scorePlayer1;
//+Conversion+of+the+NSNumber+aNumber+to+a+String+with+stringValue
NSString+*StringScorePlayer1+=+[aNumber+stringValue];|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|899686|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>//An example of implementation :
// we set the score of one player to a value
[Game getCurrent].scorePlayer1 = [NSNumber numberWithInteger:1];
// We copy the value in a NSNumber
NSNumber *aNumber = [Game getCurrent].scorePlayer1;
// Conversion of the NSNumber aNumber to a String with stringValue
NSString *StringScorePlayer1 = [aNumber stringValue];
</code></pre>

blocks|key|899696|text|您可以使用以下命令来完成此操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|899697|NSNumber+*myNumber+=+@15;
NSString+*myNumberInString+=+[myNumber+stringValue];|code-block|syntax|javascript|899698|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can do it with:

<pre><code>NSNumber *myNumber = @15;
NSString *myNumberInString = [myNumber stringValue];
</code></pre>

blocks|key|1114462|text|有趣的是，如果NSNumber成为字符串的一部分，它会自动转换为字符串。我不认为这是记录在案的。试试这些：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1114463|NSLog(@"My+integer+NSNumber:%25@",[NSNumber+numberWithInt:184]);
NSLog(@"My+float+NSNumber:%25@",[NSNumber+numberWithFloat:12.23f]);
NSLog(@"My+bool(YES)+NSNumber:%25@",[NSNumber+numberWithBool:YES]);
NSLog(@"My+bool(NO)+NSNumber:%25@",[NSNumber+numberWithBool:NO]);

NSString+*myStringWithNumbers+=+[NSString+stringWithFormat:@"Int:%25@,+Float:%25@+Bool:%25@",[NSNumber+numberWithInt:132],[NSNumber+numberWithFloat:-4.823f],[NSNumber+numberWithBool:YES]];
NSLog(@"%25@",myStringWithNumbers);|code-block|syntax|javascript|1114464|它将打印：|1114465|My+integer+NSNumber:184
My+float+NSNumber:12.23
My+bool(YES)+NSNumber:1
My+bool(NO)+NSNumber:0
Int:132,+Float:-4.823+Bool:1|1114466|适用于Mac和iOS|1114467|这个不起作用：|1114468|NSString+*myNSNumber2+=+[NSNumber+numberWithFloat:-34512.23f];|1114469|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

The funny thing is that NSNumber converts to string automatically if it becomes a part of a string. I don't think it is documented.
Try these:

<pre><code>NSLog(@"My integer NSNumber:%@",[NSNumber numberWithInt:184]);
NSLog(@"My float NSNumber:%@",[NSNumber numberWithFloat:12.23f]);
NSLog(@"My bool(YES) NSNumber:%@",[NSNumber numberWithBool:YES]);
NSLog(@"My bool(NO) NSNumber:%@",[NSNumber numberWithBool:NO]);

NSString *myStringWithNumbers = [NSString stringWithFormat:@"Int:%@, Float:%@ Bool:%@",[NSNumber numberWithInt:132],[NSNumber numberWithFloat:-4.823f],[NSNumber numberWithBool:YES]];
NSLog(@"%@",myStringWithNumbers);
</code></pre>

It will print:

<pre><code>My integer NSNumber:184
My float NSNumber:12.23
My bool(YES) NSNumber:1
My bool(NO) NSNumber:0
Int:132, Float:-4.823 Bool:1
</code></pre>

Works on both Mac and iOS

This one does not work:

<pre><code>NSString *myNSNumber2 = [NSNumber numberWithFloat:-34512.23f];
</code></pre>

blocks|key|1114500|text|在Swift中，您可以这样做|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1114501|let+number+:+NSNumber+=+95
let+str+:+String+=+number.stringValue|code-block|syntax|javascript|1114502|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In Swift you can do like this

<pre><code>let number : NSNumber = 95
let str : String = number.stringValue
</code></pre>

So I have an <code>NSArray</code> "myArray" with <code>NSNumber</code>s and <code>NSString</code>s. I need them in another <code>UIView</code> so i go like this:

<pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

DetailViewController *details = [[DetailViewController alloc] initWithNibName:@"DetailView" bundle:nil];
details.subjectText = [[myArray objectAtIndex:indexPath.row] objectForKey:@"subject"];
</code></pre>

The subjectText works.
But how can I get the <code>NSNumber</code>s out of it? (I actually need them as strings...)
I would convert a <code>NSString</code> out of a <code>NSNumber</code> like this:
<code>NSString *blah = [NSNumber intValue]</code>. But I don't know how to set it up in the code above...

How to convert NSNumber to NSString

Swift

所以我有一个带有NSNumbers和NSStrings的NSArray "myArray“。我需要在另一个UIView中使用它们，所以我这样做：- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexP...

问如何将NSNumber转换为NSString
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