1. Printf enumeration to display the ordinal of an enumeration:
#include <stdio.h>
int main(void)
{
enum ABC{AAA,BBB,CCC};
enum ABC e1,e2,e3;
e1 = AAA;
e2 = BBB;
e3 = CCC;
printf("%d, %d, %d\n", e1, e2, e3);
getchar();
return 0;
}
2. You can define variables at the same time when you define enumerations:
#include <stdio.h>
int main(void)
{
enum ABC{AAA,BBB,CCC} e1=BBB, e2=BBB+1, e3=e2-2;
printf("%d, %d, %d\n", e1, e2, e3);
getchar();
return 0;
}
3. When defining variables, you can not even enumerate names:
#include <stdio.h>
int main(void)
{
enum {AAA,BBB,CCC} e=BBB;
printf("%d\n", e);
e++;
printf("%d\n", e);
getchar();
return 0;
}
4. Can be arbitrarily specified serial number:
#include <stdio.h>
int main(void)
{
enum ABC{AAA=2,BBB,CCC=9} e1, e2, e3;
e1 = AAA;
e2 = BBB;
e3 = CCC;
printf("%d, %d, %d\n", e1, e2, e3);
getchar();
return 0;
}
5. It doesn't matter if the serial number is heavy:
#include <stdio.h>
int main(void)
{
enum ABC{AAA=2,BBB=2,CCC} e1, e2, e3;
e1 = AAA;
e2 = BBB;
e3 = CCC;
printf("%d, %d, %d\n", e1, e2, e3);
getchar();
return 0;
}
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