C语言职工管理系统设计

 #include #include #include  struct Worker { int id;//工号 char name[16];//姓名 char sex[8];//性别 int age;//年龄 char edu_exp[32];//学历 int wage;//工资 char adress[32];//地址 char phong[16];//电话 Worker* next; }; //创建表头 Worker m_head = { 0 }; //用户输入信息 int user_input(Worker* w) { printf("ID:"); scanf("%d", &w->id); getchar();//吸收回车字符 printf("name:"); gets_s(w->name); printf("sex:"); gets_s(w->sex); printf("age:"); scanf("%d", &w->age); getchar();//吸收回车字符 printf("edu_exp:"); gets_s(w->edu_exp); printf("wage:"); scanf("%d", &w->wage); getchar();//吸收回车字符 printf("adress:"); gets_s(w->adress); printf("phone:"); gets_s(w->phong); return 0; } //添加对象 void add(Worker* w) { w->next = m_head.next; m_head.next = w; } //按插入对象 int insert(Worker* w) { Worker* cur = m_head.next; // 当前节点current Worker* pre = &m_head; // 上一个节点previous while (cur) { if (w->id id) // 找到这个位置 break; pre = cur; cur = cur->next; // 找到最后一个对象 } // 插入到pre节点的后面 w->next = pre->next; pre->next = w; return 0; } //删除对象 int remove(int id) { Worker* cur = m_head.next;//当前节点为第一个对象 Worker* pre = &m_head;//当前节点的前一个节点，为头节点，指向第一个对象 while (cur) { if (id == cur->id)//找到要删除的节点 { pre->next = cur->next; free(cur);//删除该节点 return 1;//成功删除返回1 } pre = cur; cur = cur->next; } return 0; } //查找对象 int find(int id) { Worker* p = m_head.next; while (p) { if (id == p->id) { printf("ID:%d\nName:%s\nSex:%s\nAge:%d\nEdu-exp:%s\nWage:%d\nAdress:%s\nPhone:%s\n", p->id, p->name, p->sex, p->age, p->edu_exp, p->wage, p->adress, p->phong); return 1;//找到目标返回1 } p = p->next; } return 0; } //遍历 void show_all() { Worker* p = m_head.next; if (!p) { printf("暂无员工信息!\n"); return; } printf("工 号 姓 名 性 别 年 龄 学 历 工 资 住 址 电 话\n"); printf("----------------------------------------------------------------\n"); while (p) { printf("%d %s %s %d %s %d %s %s\n", p->id, p->name, p->sex, p->age, p->edu_exp, p->wage, p->adress, p->phong); p = p->next; } } //向文件存入数据 int save() { const char* filename = "F:\\data.txt"; FILE* fp = fopen(filename, "a"); if (fp == NULL) { printf("can not open the file...."); exit(0); } Worker* p = m_head.next; while (p) { fprintf(fp, "\r"); fprintf(fp, "%d ", p->id); fprintf(fp, "%s ", p->name); fprintf(fp, "%s ", p->sex); fprintf(fp, "%d ", p->age); fprintf(fp, "%s ", p->edu_exp); fprintf(fp, "%d ", p->wage); fprintf(fp, "%s ", p->adress); fprintf(fp, "%s ", p->phong); fprintf(fp, "\t\r\n"); p = p->next; } fclose(fp); return 0; } //修改对象 void rewrite(int id) { Worker* p = m_head.next; while (p) { if (id == p->id) { user_input(p); } p = p->next; } } //主菜单 void List() { Worker* w = NULL; char key; while (1) { do { system("cls"); printf("*******************************************************\n"); printf("*  主菜单操作界面  *\n"); printf("*    *\n"); printf("* 1.录入职工信息   *\n"); printf("* 2.浏览职工信息   *\n"); printf("* 3.查询职工信息   *\n"); printf("* 4.删除职工信息   *\n"); printf("* 5.修改职工信息   *\n"); printf("* 6.使用说明   *\n"); printf("* 7.退出   *\n"); printf("*    *\n"); printf("*******************************************************\n"); key = getchar(); } while (key != '1'&&key != '2'&&key != '3'&&key != '4' &&key != '5'&&key != '6'&&key != '7'); switch (key) { case '1':system("cls"); while (1) { Worker* w = (Worker*)malloc(sizeof(Worker)); user_input(w); insert(w); if (getchar() == 'N') { break; } } save(); free(w); break; case '2':system("cls"); show_all(); system("pause"); break; case '3':system("cls"); if (!m_head.next) { printf("暂无员工信息!\n"); system("pause"); break; } while (1) { int n; printf("---------------------------------\n"); printf("请输入要查找的ID号:"); scanf("%d", &n); if (!find(n)) { printf("找不到ID号为%d 的职工信息...\n", n); } char ch = getchar(); if (ch == 'N') { break; } } break; case '4':system("cls"); if (!m_head.next) { printf("暂无员工信息!\n"); system("pause"); break; } while (1) { int n; printf("---------------------------------\n"); printf("请输入要删除的ID号:"); scanf("%d", &n); if (remove(n)) { printf("成功删除ID号为%d的职工信息.\n", n); } else printf("无法删除ID号为%d的职工信息.\n", n); char ch = getchar(); if (ch == 'N')//摁N退出 { break; } } break; case '5':system("cls");// if (!m_head.next) { printf("暂无员工信息!\n"); system("pause"); break; } while (1) { int n; printf("请输入要修改的ID号:\n"); scanf("%d", &n); printf("请修改:\n"); rewrite(n); if (getchar() == 'N') { break; } } break; case '6':system("cls"); printf("职工系统使用说明:摁相应数字进入相应的子菜单，若想退出则摁N\n开始无数据，需要先进行录入.\n"); system("pause"); break; case '7':system("cls");// return; break; } } } int main() { List(); return 0; }