printf("Please input the lenth of the second linktable! ");
scanf("%d",&len2);
printf("/************************************************************************/\n");
printf("The lenth of the second linktable is %d,please input %d int data! ",len2,len2);
init(&head2,len2);
printf("\n\n/-----------------------------fire works---------------------------------/\n");
intersection(&head1,&head2,&head3);
printf("The intersection of two linktable: ");
display(&head3);
printf("/-----------------------------fire works---------------------------------/\n");
unionset(&head1,&head2,&head4);
printf("The union set of two linktable: ");
display(&head4);
printf("/-----------------------------fire works---------------------------------/\n");
diffrenceset(&head1,&head2,&head5);/*第一个减第二个的差集*/
printf("The set of the first-second: ");
display(&head5);
diffrenceset(&head2,&head1,&head6);/*第二个减第一个的差集*/
printf("The set of the second-first: ");
display(&head6);
printf("/-----------------------------fire works---------------------------------/\n");
}