c 枚举 获得枚举项的字符串

Posted 2023-03-23

#include "stdio.h"

void main( )

enum weekday sun,mon,tue,wed,thu,fri,sat day;
int k;
scanf("%d",&k);
day=(enum weekday)k;
switch(day)

case 0: printf("sun\n");break;
case 1: printf("mon\n");break;
case 2: printf("tue\n");break;
case 3: printf("wed\n");break;
case 4: printf("thu\n");break;
case 5: printf("fri\n");break;
case 6: printf("sat\n");break;
default: printf("input error\n");break;


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希望达到如上的效果，但是printf中的字符串不是我输入的，而是直接取枚举项中的相应项的字符串

参考技术A

#include "stdio.h"

void main( )  

enum weekday sun,mon,tue,wed,thu,fri,sat;

char *weekdaystr[] = "sun","mon","tue","wed","thu","fri","sat";

int k;

scanf("%d",&k);

switch((enum weekday)k) 

case 0: printf("%s\\n",weekdaystr[0]);break; 

case 1: printf("%s\\n",weekdaystr[1]);break; 

case 2: printf("%s\\n",weekdaystr[2]);break; 

case 3: printf("%s\\n",weekdaystr[3]);break; 

case 4: printf("%s\\n",weekdaystr[4]);break; 

case 5: printf("%s\\n",weekdaystr[5]);break; 

case 6: printf("%s\\n",weekdaystr[6]);break; 

default: printf("input error\\n");break; 

 

本回答被提问者采纳

python 返回带有自然枚举项的字符串

def humanize_list(list_, last_sep=' and ', sep=', ', wrap_item_with=''):
    """
    Return a string with a natural enumeration of items
    source: Ipython.utils.text (modified)

    >>> humanize_list(['a', 'b', 'c', 'd'])
    'a, b, c and d'
    >>> humanize_list(['a', 'b', 'c'], ' or ')
    'a, b or c'
    >>> humanize_list(['a', 'b', 'c'], ', ')
    'a, b, c'
    >>> humanize_list(['a', 'b'], ' or ')
    'a or b'
    >>> humanize_list(['a'])
    'a'
    >>> humanize_list([])
    ''
    >>> humanize_list(['a', 'b'], wrap_item_with="`")
    '`a` and `b`'
    >>> humanize_list(['a', 'b', 'c', 'd'], " = ", sep=" + ")
    'a + b + c = d'
    """
    if not list_:
        return ''
    result = (['{1}{0}{1}'.format(i, wrap_item_with) for i in list_]
              if wrap_item_with else list_[:])
    if len(result) == 1:
        return result[0]
    return '{}{}{}'.format(sep.join(result[:-1]), last_sep, result[-1])

if __name__ == '__main__':
    import doctest
    doctest.testmod()