struct worker{
int  ID;
int age;
char name[20];
};
int main()
{
    struct worker wkr[10]
    for (int i=0;i<10;i++){
        printf("please give the ID of %d . worker", i+1);
        scanf("%d",wkr[i].ID);
        printf("please give the age of %d . worker",i+1);
        scanf("%d",wkr[i].age);
        printf("please give the name of %d . worker",i+1);
        scanf("%s",wkr[i].name);
    return 0;
}