追加字符串mutablestring

Question

NSString *str= @"surname"; 
NSMutableString *consonants = [[NSMutableString alloc] init]; 
NSMutableString *vowels = [[NSMutableString alloc] init]; 

for (int i=0; i < [str length]; i++){ 
    if ([str characterAtIndex:i] != 'a' && [str characterAtIndex:i] != 'e' && [str characterAtIndex:i] != 'i' && [str characterAtIndex:i] != 'o' && [str characterAtIndex:i] != 'u') { 
      [consonants appendFormat:@"%c",[str characterAtIndex:i]]; 
     } 
     else{ 
      [vowels appendFormat:@"%c",[str characterAtIndex:i]]; 
     } 
    } 


if([consonants length] < 3){ 
     [consonants appendFormat:@"%@", [vocali characterAtIndex:1]]; 
} 

我的問題是後續：
如果有較少的3輔音，我必須ñ元音附加到輔音串。

示例：
str =「mario」;
輔音=「mra」; // 2個輔音和1個元音

str = leo;
輔音=「leo」; // 1個輔音和2個元音

Thk。

Answer 1

如果您知道輸入的字符串會大於或等於3，你可以只使用一個while循環：

int i = 0; 
while([consonant length]<3){ 
    [consonant appendFormat:@"%c",[vocali characterAtIndex:i]]; 
    i++ 
}