如何在iPhone应用程序中使用正则表达式来分隔字符串,(逗号)

NSError *error = nil;
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"\\s*,\\s*" options:NSRegularExpressionCaseInsensitive error:&error];

NSString *targetString = @"apple, banana, orange";
NSArray *splitArray = [regex matchesInString:targetString options:0 range:NSMakeRange(0, [targetString length])];

NSMutableArray *resultArray = [NSMutableArray array];
for (NSTextCheckingResult *match in splitArray) {
    NSString *subString = [targetString substringWithRange:match.range];
    [resultArray addObject:subString];
}