熟练结构体的使用
转移表的方式降低代码复杂度
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
//通讯录可以用来存储1000个人的信息，每个人的信息包括：
//姓名、性别、年龄、电话、住址
//1. 添加联系人信息
//2. 删除指定联系人信息
//3. 查找指定联系人信息
//4. 修改指定联系人信息
//5. 显示所有联系人信息
//6. 清空所有联系人
//7. 以名字排序所有联系人
//8. 保存联系人到文件
//9. 加载联系人
typedef struct PersonInfo {
char name[1024];
char sex[1024];
int age[1024];
char phone[1024];
char address[1024];
}PersonInfo;
typedef struct AddressBook {
PersonInfo* persons;
int size;//表示有效元素
int capacity;
}AddressBook,*Pc;
AddressBook g_address_book;
int Menu() {
printf("*************************\n");
printf("*****1.新增联系人********\n");
printf("*****2.删除指定联系人****\n");
printf("*****3.查找指定联系人****\n");
printf("*****4.修改指定联系人****\n");
printf("*****5.显示所有联系人****\n");
printf("*****6.清空所有联系人****\n");
printf("*****7.以名字排序联系人**\n");
printf("*****8.保存联系人到文件**\n");
printf("*****9.加载联系人********\n");
printf("*************************\n");
int choice = 0;
printf("请输入您的选择:");
scanf("%d", &choice);
return choice;
}
void Empty() {
}
void Init() {
g_address_book.size = 0;
g_address_book.capacity = 100;
g_address_book.persons = (PersonInfo*)malloc(100 * sizeof(PersonInfo));
for (int i = 0; i < g_address_book.capacity; ++i) {
g_address_book.persons[i].name[0] = '\0';
g_address_book.persons[i].sex[0] = '\0';
g_address_book.persons[i].age[0] = '\0';
g_address_book.persons[i].phone[0] = '\0';
g_address_book.persons[i].address[0] = '\0';
}
}
void AddPersonInfo() {
printf("新增联系人\n");
if (g_address_book.size >= g_address_book.capacity) {
printf("当前空间不足!进行扩容!\n");
g_address_book.capacity += 100;
g_address_book.persons = (PersonInfo*)realloc(g_address_book.persons,
g_address_book.capacity * sizeof(PersonInfo));
}
PersonInfo* person_info = &g_address_book.persons[g_address_book.size];
printf("请输入联系人姓名\n");
//必须获取一个指针,修改的内容是与其想要的.
scanf("%s", person_info->name);
printf("请输入联系人性别\n");
scanf("%s", person_info->sex);
printf("请输入联系人年龄\n");
scanf("%s", person_info->age);
printf("请输入联系人电话\n");
scanf("%s", person_info->phone);
printf("请输入联系人住址\n");
scanf("%s", person_info->address);
++g_address_book.size;
printf("新增联系人成功\n");
}
void DelPersonInfo() {
printf("删除联系人\n");
if (g_address_book.size <= 0) {
printf("删除失败,通讯录为空\n");
return;
}
printf("请输入要删除的序号\n");
int id = 0;
scanf("%d",&id);
if (id<0 || id>=g_address_book.size) {
printf("删除失败,您输入的序号有误\n");
return;
}
g_address_book.persons[id] =
g_address_book.persons[g_address_book.size - 1];
--g_address_book.size;
printf("删除联系人成功\n");
/////////////////////////////////////////
}
void FindPersonInfo() {
printf("查找联系人\n");
if (g_address_book.size <= 0) {
printf("查找失败,通讯录为空\n");
return;
}
printf("请输入你要查找的联系人姓名:");
char name[1024] = { 0 };
scanf("%s",name);
for (int i = 0; i < g_address_book.size; ++i) {
PersonInfo* info = &g_address_book.persons[i];
if (strcmp(info->name, name) == 0) {
printf("[%d] %s\t%s\t%s\t%s\t%s\n", i,
info->name, info->sex, info->age, info->phone, info->address);
}
}
printf("查找联系人成功\n");
}
void UpdatPersonInfo() {
printf("更新联系人\n");
if (g_address_book.size <= 0) {
printf("修改失败,通讯录为空\n");
return;
}
printf("请输入要修改的序号\n");
int id = 0;
scanf("%d", &id);
if (id < 0 || id >= g_address_book.size) {
printf("您输入的序号有误,修改失败\n");
return;
}
PersonInfo* info = &g_address_book.persons[id];
printf("*表示相同信息不修改\n");
printf("请输入新的姓名:(%s)\n",info->name);
char name[1024] = { 0 };
scanf("%s", name);
if (strcmp(name, "*") != 0) {
strcpy(info->name, name);
}
printf("请输新的性别:(%s)\n", info->sex);
char sex[1024] = { 0 };
scanf("%s", sex);
if (strcmp(sex, "*") != 0) {
strcpy(info->sex, sex);
}
printf("请输入新的年龄:(%s)\n", info->age);
int age[1024] = { 0 };
scanf("%s", age);
if (strcmp(age, "*") != 0) {
strcpy(info->age, age);
}
printf("请输入新的电话:(%s)\n", info->phone);
char phone[1024] = { 0 };
scanf("%s", phone);
if (strcmp(phone, "*") != 0) {
strcpy(info->phone,phone );
}
printf("请输入新的住址:(%s)\n", info->address);
char address[1024] = { 0 };
scanf("%s", address);
if (strcmp(address, "*") != 0) {
strcpy(info->address,address );
}
printf("更新联系人成功\n");
}
void PrintAllPersonInfo() {
printf("打印全部联系人\n");
for (int i = 0; i < g_address_book.size; ++i) {
PersonInfo* info = &g_address_book.persons[i];
printf("[%d] %s\t%s\t%s\t%s\t%s\n",i,info->name,
info->sex, info->age, info->phone, info->address);
}
printf("共打印了 %d 条数据!\n",g_address_book.size);
printf("打印全部联系人成功\n");
}
void ClearAllPersonInfo() {
printf("清除联系人\n");
printf("您确定要删除全部联系人Y\N,请输入您的选择:\n");
char choice[1024] = {0};
scanf("%s",&choice);
if (strcmp(choice, "Y") == 0) {
g_address_book.size = 0;
for (int i = 0; i < g_address_book.capacity; ++i) {
g_address_book.persons[i].name[0] = ' ';
g_address_book.persons[i].sex[0] = ' ';
g_address_book.persons[i].age[0] = ' ';
g_address_book.persons[i].phone[0] = ' ';
g_address_book.persons[i].address[0] = ' ';
}
printf("清除联系人成功\n");
}
else {
printf("清除操作取消\n");
}
}
void SortPersonInfo() {
printf("排序联系人\n");
if (g_address_book.size <= 0) {
printf("排序失败,通讯录为空\n");
return;
}
PersonInfo tmp;
for (int i = 0; i < g_address_book.size; ++i) {
for (int j = 1; j < g_address_book.size - i; ++j) {
if (strcmp(g_address_book.persons[j - 1].name,
g_address_book.persons[j].name) > 0) {
tmp = g_address_book.persons[j];
g_address_book.persons[j] = g_address_book.persons[j-1];
g_address_book.persons[j-1] = tmp;
}
}
}
PrintAllPersonInfo();
printf("排序联系人成功\n");
}
void SavePersonInfoFile() {
}
void ReadPersonInfo() {
}
typedef void(*Func)();
int main() {
Func arr[] = {
Empty,
AddPersonInfo,
DelPersonInfo,
FindPersonInfo,
UpdatPersonInfo,
PrintAllPersonInfo,
ClearAllPersonInfo,
SortPersonInfo,
SavePersonInfoFile,
ReadPersonInfo
};
Init();
while (1) {
int choice = Menu();
if (choice < 0 || choice >= sizeof(arr) / sizeof(arr[0])) {
printf("您的输入有误,请重新输入!\n");
continue;
}
if (choice == 0) {
printf("再见\n");
break;
}
arr[choice]();
}
system("pause");
return 0;
}