如何獲得子字符串在iPhone中的字符串？

Question

我有格式某些字符串：

="Netherlands Antillean Guilder (ANG)","Australian Dollar (AUD)" 

我想要得到的括號"()"

如何做到這一點的子串？

Answer 1

草率的方式來做到這一點：

NSString *theString = @"Netherlands Antillean Guilder (ANG)"; 
    NSArray *someArray = [theString componentsSeparatedByString:@"("]; 
    theString = [someArray objectAtIndex:1]; 
    someArray = [theString componentsSeparatedByString:@")"]; 
    theString = [someArray objectAtIndex:0]; 

theString應該是 「ANG」。附近沒有SDK，所以可能有一兩個錯誤。

希望它有幫助

Answer 2

NSString *startfrom = [[NSString alloc] initWithFormat:@"("]; 
    NSString *Myword = nil; 
    NSScanner *scanner = [NSScanner scannerWithString:"Netherlands Antillean Guilder (ANG)","Australian Dollar (AUD)"]; 
    [scanner scanUpToString:startfrom intoString:nil]; 
    [scanner scanUpToString:@")" intoString:&Myword]; 
    NSString *finalword = [Myword substringFromIndex:[startfrom length]]; 
    NSLog(@" %@",finalword); 
    [startfrom release];