iPhone：將NSString 123-123-1234轉換爲（123）123-1234

Question

我有類似123-123-1234的字符串，所以我想將字符串轉換爲這種格式 （123）123-1234所以任何想法來開發這個功能。

在此先感謝。

Answer 1

我覺得是這樣的：

NSString *list = @"123-123-1234"; 
NSArray *listItems = [list componentsSeparatedByString:@"-"]; 
NSString *result = [NSString stringWithFormat:@"(%@) %@-%@", [listItem objectAtIndex:0], [listItem objectAtIndex:1], [listItem objectAtIndex:2]]; 

Answer 2

測試的代碼：100％WORKS

NSString *inputString=@"123-123-1234"; 


NSArray *TotalString=[inputString componentsSeparatedByString:@"-"]; 


NSString *outputString = [NSString stringWithFormat:@"(%@) %@-%@",[TotalString objectAtIndex:0],[TotalString objectAtIndex:1],[TotalString objectAtIndex:2]]; 

NSLog(@"outputString is : %@ \n\n",outputString); 

OUTPUT： outputString是：（123）123-1234

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對於動態Sollution：

注：如果u有更多的破折號與UR串那麼它真的很難代碼一切與objectAtIndex用數字0,1,2，......

而且它會崩潰，如果它有意想不到的長度

所以這裏是這個

NSString *inputString=@"123-123-1234"; 


NSArray *TotalString=[inputString componentsSeparatedByString:@"-"]; 


NSMutableString *outputString=[NSMutableString string]; 
for (NSMutableString *obj in TotalString) { 


    if ([TotalString objectAtIndex:0] == obj && [outputString length]<=0) { 

     outputString=[[outputString stringByAppendingFormat:@"(%@)",obj] mutableCopy]; 


    } 
    else if ([TotalString objectAtIndex:1] == obj) { 

     outputString=[[outputString stringByAppendingFormat:@"%@%@",@" ",obj] mutableCopy]; 


    } 
    else { 
     outputString=[[outputString stringByAppendingFormat:@"-%@",obj] mutableCopy]; 

    } 

} 

輸出的解決方案： outputString是：（123）123-1234

Answer 3

NSString * original = @"123-123-1234"; 
NSArray * components = [original componentsSeparatedByString:@"-"]; 
NSString * first = [NSString stringWithFormat:@"(%@)",[components objectAtIndex:0] ]; 
NSString * second = [NSString stringWithFormat:@"%@-%@",[components objectAtIndex:1],[components objectAtIndex:2]]; 
NSString * finalString = [NSString stringWithFormat:@"%@%@",first,second]; 
NSLog(@"Final Result = %@",finalString); 

Answer 4

的NSString * STR = @ 「123-123-1234」;

NSArray * arrForDate = [str componentsSeparatedByString：@「 - 」];

的NSString * STR1 = [NSString的stringWithFormat：@ 「（％@）％@ - @％」，[arrForDate objectAtIndex：0]，[arrForDate objectAtIndex：1]，[arrForDate objectAtIndex：2]]; （@「str1％@」，str1）;