C语言实现销售管理系统 C语言实现销售管理系统

本文实例为大家分享了C语言实现销售管理系统的具体代码，供大家参考，具体内容如下
【C语言实现销售管理系统】
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这是题目，没用到文件相关的函数，所以不能保存在本地，每次读入都得重新输入。

#include#include#include#include#includestruct node{char no[12]; /*代号*/char name[40]; /*姓名*/float sales[12]; /*月销售额*/float total; /*年度总销售额*/struct node* link; }; struct List{node* head; node* end; int size; }; List* init(); void pushNode(List* list); bool hasExist(List* list, char* no); void addNode(List* list, node t); void showNodes(List* list); void mainMenu(); void search(List* list); void change(List* list); void deleteInfo(List* list); void showTotal(List* list); void findMaxMin(List* list); int main(){List* list = init(); mainMenu(); while (true){char c; c = getch(); if (c == '1')pushNode(list); if (c == '2')showNodes(list); if (c == '3')search(list); if (c == '4')change(list); if (c == '5')deleteInfo(list); if (c == '6')showTotal(list); if (c == '7')findMaxMin(list); mainMenu(); }return 0; }List* init(){List* list = (List*)malloc(sizeof(List)); list->head = list->end = NULL; list->size = 0; return list; }void pushNode(List* list){node t; printf("请录入销售员的信息，输入#退出\n"); while (true){node t; printf("------------------------\n"); printf("输入第%d个销售员的代号:", list->size + 1); scanf("%s", t.no); if (strcmp(t.no, "#") == 0)break; if (hasExist(list, t.no)){printf("该代号已存在！\n"); continue; }printf("请输入第%d个销售员的姓名:", list->size + 1); scanf("%s", t.name); memset(t.sales, 0, sizeof(t.sales)); printf("请录入该销售员每月的销售额，输入负数结束录入\n"); for (int i = 0; i < 12; i++){printf("请输入该销售员%d月的销售额:", i + 1); float temp; scanf("%f", &temp); if (temp < 0)break; elset.sales[i] = temp; }t.total = 0; for (int i = 0; i < 12; i++)t.total += t.sales[i]; t.link = NULL; addNode(list, t); }}bool hasExist(List* list, char* no){node* ptr = list->head; while (ptr != NULL){if (strcmp(ptr->no, no) == 0)return true; ptr = ptr->link; }return false; }void addNode(List* list, node t){node* nd = (node*)malloc(sizeof(node)); strcpy(nd->no, t.no); strcpy(nd->name, t.name); nd->link = t.link; for (int i = 0; i < 12; i++)nd->sales[i] = t.sales[i]; nd->total = t.total; if (list->head == NULL)list->head = list->end = nd; else {list->end->link = nd; list->end = nd; }list->size++; }void showNodes(List* list){node* ptr = list->head; int index = 1; while (ptr != NULL){if (index != 1)printf("------------------\n"); printf("第%d个销售员\n", index); printf("代号:%s\n", ptr->no); printf("姓名:%s\n", ptr->name); for (int i = 0; i < 12; i++)if (ptr->sales[i] != 0)printf("%d月销售额:%.2f\n", i + 1, ptr->sales[i]); printf("总销售额:%.2f\n", ptr->total); index++; ptr = ptr->link; }printf("---------------\n"); printf("请按下任意键返回"); getch(); }void mainMenu(){system("cls"); printf("***********************************************销售员管理系统***********************************************\n\n"); printf("1.录入销售员信息\n"); printf("2.展示所有销售员的信息\n"); printf("3.查找指定销售员的指定月份的销售额\n"); printf("4.修改指定销售员指定月份的销售额\n"); printf("5.删除指定员工的信息\n"); printf("6.统计所有员工的年度销售总量\n"); printf("7.统计最大和最小月销售额和年销售额\n\n"); printf("****************************************************************************************************************\n"); }void search(List* list){printf("按1通过代号查找,否则通过姓名查找\n"); if (getch() == '1'){printf("请输入代号:"); char s[12]; scanf("%s", s); printf("请输入要查找的月份:"); int month; scanf("%d", &month); node* ptr = list->head; bool flag = false; while (ptr != NULL){if (strcmp(ptr->no, s) == 0){flag = true; break; }ptr = ptr->link; }if (flag)printf("销售额为:%.2f\n", ptr->sales[month - 1]); elseprintf("暂未录入此销售员信息！\n"); printf("请按任意键返回"); getch(); }else{printf("请输入姓名:"); char s[40]; scanf("%s", s); printf("请输入要查找的月份:"); int month; scanf("%d", &month); node* ptr = list->head; bool flag = false; while (ptr != NULL){if (strcmp(ptr->name, s) == 0){flag = true; break; }ptr = ptr->link; }if (flag)printf("销售额为:%.2f\n", ptr->sales[month - 1]); elseprintf("暂未录入此销售员信息！\n"); printf("请按任意键返回"); getch(); }}void change(List* list){printf("请输入待修改员工的代号:"); char s[12]; scanf("%s", s); while (!hasExist(list, s)){printf("该员工不存在，请重新输入！或输入#退出\n"); scanf("%s", s); if (strcmp("#", s) == 0)return; }printf("请输入待修改的月份:"); int month; scanf("%d", &month); printf("请输入修改后的销售额:"); float temp; scanf("%f", &temp); node* ptr = list->head; while (ptr != NULL)if (strcmp(ptr->no, s) == 0)break; ptr->sales[month - 1] = temp; ptr->total = 0; for (int i = 0; i < 12; i++)ptr->total += ptr->sales[i]; printf("修改成功!\n"); printf("------------------\n"); printf("代号:%s\n", ptr->no); printf("姓名:%s\n", ptr->name); for (int i = 0; i < 12; i++)if (ptr->sales[i] != 0)printf("%d月销售额:%.2f\n", i + 1, ptr->sales[i]); printf("总销售额:%.2f\n", ptr->total); printf("--------------------\n"); printf("请按任意键返回"); getch(); }void deleteInfo(List* list){printf("请输入待删除员工的代号:"); char s[12]; scanf("%s", s); while (!hasExist(list, s)){printf("该员工不存在，请重新输入或输入#退出\n"); scanf("%s", s); if (strcmp("#", s) == 0)return; }node* pro = list->head; node* ptr; if (strcmp(pro->no, s) == 0){ptr = pro; }else {while (pro != NULL){if (strcmp(pro->link->no, s) == 0)break; pro = pro->link; }node* ptr = pro->link; }printf("------该员工信息-------\n"); printf("代号:%s\n", ptr->no); printf("姓名:%s\n", ptr->name); for (int i = 0; i < 12; i++)if (ptr->sales[i] != 0)printf("%d月销售额:%.2f\n", i + 1, ptr->sales[i]); printf("总销售额:%.2f\n", ptr->total); printf("----------------------\n"); printf("请按'1'确认删除，其余键返回主菜单\n"); if (getch() == '1'){if (pro == ptr){list->head = list->end = NULL; free(ptr); printf("删除成功！\n请按任意键返回"); getch(); }else{pro->link = ptr->link; free(ptr); printf("删除成功！\n请按任意键返回"); getch(); }}elsereturn; }void showTotal(List* list){float tal = 0; node* ptr = list->head; while (ptr != NULL){tal += ptr->total; ptr = ptr->link; }printf("------------------\n"); printf("总销售额为%.2f\n", tal); printf("-------------------\n"); printf("请按任意键返回\n"); getch(); }void findMaxMin(List* list){float maxMonth, minMonth; char* maxNo, *minNo; float maxYear, minYear; char* maxYearNo, *minYearNo; node* ptr = list->head; if (ptr != NULL){minMonth = maxMonth = ptr->sales[0]; maxNo = minNo = ptr->no; maxYear = minYear = ptr->total; maxYearNo = minYearNo = ptr->no; }elsereturn; while (ptr != NULL){for (int i = 0; i < 12; i++){if (minMonth > ptr->sales[i]){minMonth = ptr->sales[i]; minNo = ptr->no; }if (maxMonth < ptr->sales[i]){maxMonth = ptr->sales[i]; maxNo = ptr->no; }}if (maxYear < ptr->total){maxYear = ptr->total; maxYearNo = ptr->no; }if (minYear > ptr->total){minYear = ptr->total; minYearNo = ptr->no; }ptr = ptr->link; }printf("-------------------------------------"); printf("最大月销售额:%.2f 代号:%s\n", maxMonth, maxNo); printf("最小月销售额:%.2f 代号:%s\n", minMonth, minNo); printf("最大年销售总额:%.2f 代号:%s\n", maxYear, maxYearNo); printf("最小年销售总额:%.2f 代号:%s\n", minYear, minYearNo); printf("-------------------------------------"); getch(); }

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