objective-c - 当用户输入错误的输入时，如何在文字游戏中做出默认答案？

Question

这是我到目前为止的代码，我正在使用 Objective C。它很小，但我想做出默认答案，例如，如果有人输入“我喜欢派”，它会说“我不明白”。

    printf("This is a text game! You will be shown what is going on");
    printf("\nand it is up to you to decide what to do.");

    printf("\n\nThere is a gem on the ground.");
    printf("\nWhat do you want to do");
    printf("\n>");

    char string[256];
    fgets(string, 255, stdin);

    if (strcmp(string, "pick up gem\n") == 0)
    {
        printf("Got Gem");
    }
    else if (strcmp(string, "kick gem\n") == 0){
        printf("Gem flew off the road.");
    }     

Answer 1

为什么不只是:

if (strcmp(string, "pick up gem\n") == 0){
    printf("Got Gem");
}
else if (strcmp(string, "kick gem\n") == 0){
    printf("Gem flew off the road.");
}   
else{
    printf("I don't understand.");
}

然后，对于除两个预期输入之外的任何内容，它将打印“我不明白”。