枚举类型输出无法输出字符串

Question

#include

typedef enum {North, East, South, West} directionT;

directionT OppositeDirection(directionT dir)
{
switch(dir) {
case North: return (South);
case East: return (West);
case South: return (North);
case West: return (East);
}
}

int main()
{
printf("%s\n", OppositeDirection(North));
return 0;
}

运行后总是停止工作，然而我把printf("%s\n", OppositeDirection(North));改成
printf("%d\n", OppositeDirection(North));后却能显示正确的整型数值，但我想输出字符串啊，是哪里出问题了呢？

Answer 1

做不到。因为枚举对应的字符串根本在编译后的程序中就没有。
只能再写switch case输出

http://blog.chinaunix.net/uid-20412333-id-1950066.html