大连东软小学期C语言项目学生成绩管理系统代码

/*链表版学生成绩管理系统的main函数与链表构建模块的代码*/#include #include #include struct STUDENT{ char name[ 20 ];int score;struct STUDENT * next;}; void showMenu( );struct STUDENT* createList( );void outputList(struct STUDENT * head);void searchByName(struct STUDENT * head);void deleteByName(struct STUDENT * head);struct STUDENT * add(struct STUDENT * head);int main( ){ struct STUDENT *head = NULL;int select;while(1){showMenu();scanf("%d",&select);switch(select){case 1:head = createList( );break;case 2:outputList(head);break;case 3:searchByName(head);break;case 4:deleteByName(head);break;case 5:head = add(head);break;case 6:printf("系统即将退出......");exit(0);}}return 0;}/*显示系统菜单*/void showMenu( ){printf("1-录入学生成绩\n");printf("2-输出成绩清单\n");printf("3-按姓名搜索记录\n");printf("4-按姓名删除记录\n");printf("5-追加录入学生成绩\n");printf("6-退出系统\n");printf("请选择(1-6):\n");}/*链表构建模块*/struct STUDENT* createList( ){struct STUDENT * head,*p,*q;char name[ 20 ];p = (struct STUDENT *)malloc(sizeof(struct STUDENT)); //p指针总指向新开辟的节点head = p; //头结点中没有学生成绩信息q = p; //q指针总是指向尾节点q->next = NULL; //标志链表的结束printf("请输入学生姓名(输入‘none’表示输入结束)：");scanf("%s", name);while(strcmp(name, "none") !=0 ) // name是none标志输入结束{ p = (struct STUDENT *)malloc(sizeof(struct STUDENT)); //申请新的节点内存 strcpy(p->name, name); printf("请输入分数："); scanf("%d", &p->score); q->next = p; //把新节点挂到原尾节点之后 q = q->next; //q指针指向新的尾节点 printf("请输入姓名(输入‘none’表示输入结束)："); scanf("%s", name);}q->next = NULL; //标志链表的结束return head;}/*输出链表中的所有记录清单*/void outputList(struct STUDENT * head ){struct STUDENT * p;if(head==NULL){printf("链表为空。\n");return;}for ( p = head->next; p != NULL; p = p->next ) {printf( "姓名： %s , 分数： %d \n", p->name, p->score );}}/*