#include int main(int argc, char *argv[]) { int age; printf("input age:"); scanf("%d",&age); switch(age) { case 2: case 3: printf("age:%d,enter lower class
",age); break; case 4: printf("age:%d,enter middle class
",age); break; case 5: case 6: printf("age:%d,enter higher class
",age); break; } return 0; }