链表出错,未知原因,有兴趣的进来看看!!!!

struct pcb
{        char a[10];                 /*编号*/
        char kehu[40];              /*客户*/
        char gongyi[30];            /*工艺*/
        char kebian[50];            /*客编*/
        char beizhu[200];           /*备注*/
        struct pcb *next;
}*head,*no1,*no2;
for(z=0;;z++)
             {
                if(z==1)head=no2;
                no1=(struct pcb *)malloc(sizeof(struct pcb));
                if(no1==NULL)exit(1);
                printf("\nNO.%d----------------\nbianhao:        ",z+1);
                scanf("%10s",&(no1->a));
                if(!strcmp(no1->a,"bye")||!strcmp(no1->a,"exit")||!strcmp(no1->a,"qiut"))
                {
                        free(no1);
                        no2=no2->next=no1=NULL;
                        break;
                }
                printf("kehu:           ");
                scanf("%40s",&(no1->kehu));
                printf("gongyi:         ");
                scanf("%30s",&(no1->gongyi));
                printf("kebian:         ");
                scanf("%50s",&(no1->kebian));
                printf("beizhu:         ");
                scanf("%200s",&(no1->beizhu));
                if(z!=0)
                        no2->next=no1;
                no2=no1;
              }
no2=head;
while(no2)
  {
   printf("        %s\n%s\n%s\n%s\n%s\n",no2->a,no2->kehu,no2->gongyi,no2->kebian,no2->beizhu);
   no2->next=no2;
   }
这是一个建立链表并按用户的意图分别对各节点赋值.链表表头为head!!!但遗憾的很,不知道是什么原因,输出链表时,只显示head 所指的节点数据,然后就结束了!!!!大家分析一下这是什么原因而导致的!!!!!

[[italic] 本帖最后由 dsjdcy 于 2007-12-14 07:17 编辑 [/italic]]

应该是no2=no2->next吧

节点自增
no2=no2->next;

二位挺牛B的啊!!!!我找了好长时间才发现是这里的问题!!!!!搞这个不能马虎啊!!!!!