如何修复导致循环打印两次的字符空间？ （C）

Question

我正在做一个迷你RPG基于文本的冒险，只是为了好玩。现在您需要选择一种性别，这就是我的问题所在。

for(;; ){
    printf("Are you a male or a female?\n");
    scanf ("%s", &gender);
    if ((strcmp(gender, "female")==0) || (strcmp(gender, "Female")==0) || (strcmp(gender, "Girl")==0) || (strcmp(gender, "girl")==0) || (strcmp(gender, "male")==0) || (strcmp(gender, "Male")==0) || (strcmp(gender, "Boy")==0) || (strcmp(gender, "boy")==0)){
        printf("What's your name? (Limited to 20 chars)");
        break;
    }
    else {
        printf("So you are non-binary? %s doesn't exist in our database.\n", gender);
    }
}

因此，程序将循环运行，直到您说（是男性）还是（女性）为止。那部分很好。但是，如果您输入带有空格的内容（例如“攻击直升机”），它将显示以下内容：

So you are non-binary? attack doesn't exist in our database.
Are you a male or a female?
So you are non-binary? helicopter doesn't exist in our database.
Are you a male or a female?

基本上它将先打印第一部分，然后再循环第二部分。