在包含字符Objective-C的NSString中的数字上加1

NSString *originalString = @"Objective-C123";
NSMutableString *mutableString = [NSMutableString stringWithString:originalString];

// 使用正则表达式提取数字部分
NSError *error = nil;
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"\\d+" options:0 error:&error];
NSArray<NSTextCheckingResult *> *matches = [regex matchesInString:mutableString options:0 range:NSMakeRange(0, mutableString.length)];

if (matches.count > 0) {
    // 提取第一个匹配到的数字
    NSTextCheckingResult *match = matches[0];
    NSRange numberRange = [match rangeAtIndex:0];
    NSString *numberString = [mutableString substringWithRange:numberRange];
    
    // 将提取出的数字加1
    NSInteger number = [numberString integerValue];
    number++;
    
    // 替换原始字符串中的数字部分
    NSString *newNumberString = [NSString stringWithFormat:@"%ld", (long)number];
    [mutableString replaceCharactersInRange:numberRange withString:newNumberString];
    
    // 将修改后的可变字符串转换回不可变字符串
    NSString *modifiedString = [NSString stringWithString:mutableString];
    
    NSLog(@"修改后的字符串：%@", modifiedString);
} else {
    NSLog(@"未找到数字");
}