C-排序星期几

Question

好的，所以我有一个按顺序列出 5 个工作日的数组:

char *days[5]={"Monday","Tuesday","Wednesday","Thursday","Friday"};

现在我有一些结构数组，其中一个元素是星期几，它们没有顺序，它们的顺序是随机的，例如:

d[0].day is "Thursday"
d[1].day is "Monday"
d[2].day is "Wednesday"

现在不方便的是，日子不是按 alpha 顺序排列的 :p 所以这让我想知道如何实现某种类型的 =/

Answer 1

我认为最好通过 enum 制作星期几。像:

enum Days{
    Monday = 1,
    Tuesday,
    Wednesday,
    Thursday,
    Friday
}

然后你通过像这样的函数获取日数据

void  printDays(enum d,char * buffer)
{
 const char *daysName[] = {"Monday","Tuesday","Wednesday","Thursday","Friday"};
 memcpy(buffer,daysName[d-1]);
}

那么当你使用

 d[0].day is "Thursday"
d[1].day is "Monday"
d[2].day is "Wednesday"

这很容易排序。它实际上只存储 1、2、3、4、5!