[C++知识库]C语言课程设计-通讯录（源代码200行+安装包）

语言：C语言

环境：vs2019社区版

安装包：Windows安装包-通讯录

话不多说，源代码如下：

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int n = 0;
struct Person {
	char name[10];
	char phone[20];
	char address[20];
	char email[20];
}stu[10], temp;
void set() {
	FILE* fp;
	fp = fopen("C:\\Users\\Administrator\\Desktop\\联系人.txt", "a+");
	fclose(fp);
}
void read() {
	FILE* fp;
	int i = 0;
	fp = fopen("C:\\Users\\Administrator\\Desktop\\联系人.txt", "rb");
	fread(&n, sizeof(int), 1, fp);
	for (i = 0; i < n; i++) {
		fread(&stu[i], sizeof(struct Person), 1, fp);
	}
	fclose(fp);
}
void save() {
	int i;
	FILE* fp;
	fp = fopen("C:\\Users\\Administrator\\Desktop\\联系人.txt", "wb");
	fwrite(&n, sizeof(int), 1, fp);
	for (i = 0; i < n; i++) {
		fwrite(&stu[i], sizeof(struct Person), 1, fp);
	}
	fclose(fp);
}
void paixu1() {
	for (int i = 0; i < n-1; i++) {
		for (int j = 0; j < n-i-1; j++) {
			if (strcmp(stu[j].name, stu[j+1].name) > 0) {
				temp = stu[j];
				stu[j] = stu[j + 1];
				stu[j + 1] = temp;
			}
		}
	}
}
void paixu2() {
	for (int i = 0; i < n - 1; i++) {
		for (int j = 0; j < n - i - 1; j++) {
			if (strcmp(stu[j].name, stu[j + 1].name) < 0) {
				temp = stu[j];
				stu[j] = stu[j + 1];
				stu[j + 1] = temp;
			}
		}
	}
}
void paixu3() {
	for (int i = 0; i < n - 1; i++) {
		for (int j = 0; j < n - i - 1; j++) {
			if (strcmp(stu[j].phone, stu[j + 1].phone) > 0) {
				temp = stu[j];
				stu[j] = stu[j + 1];
				stu[j + 1] = temp;
			}
		}
	}
}
void paixu4() {
	for (int i = 0; i < n - 1; i++) {
		for (int j = 0; j < n - i - 1; j++) {
			if (strcmp(stu[j].phone, stu[j + 1].phone) < 0) {
				temp = stu[j];
				stu[j] = stu[j + 1];
				stu[j + 1] = temp;
			}
		}
	}
}
void new(){
	int a = 1;
	do {
		system("CLS");
		printf("------------------------------\n            新建\n------------------------------\n请输入姓名：");
		scanf("%s", stu[n].name);
		printf("请输入电话：");
		scanf("%s", stu[n].phone);
		printf("请输入地址：");
		scanf("%s", stu[n].address);
		printf("请输入email：");
		scanf("%s", stu[n].email);
		printf("\n请输入(1.新建 0.完成)：");
		scanf("%d", &a);
		n++;
	} while (a != 0);
	save();
}
void output() {
	system("CLS");
	printf("------------------------------\n            联系人\n------------------------------\n序号  姓名      电话                地址                email\n");
	for (int i = 0; i < n; i++) {
		printf("%-6d%-10s%-20s%-20s%-20s\n", i + 1, stu[i].name, stu[i].phone, stu[i].address, stu[i].email);
	}
	getch();
}

void delete() {
	output();
	int a;
	printf("------------------------------\n            删除\n------------------------------\n请输入要删除的序号(0全部删除)：");
	scanf("%d", &a);
	if (a == 0) {
		for (int i = 0; i < n; i++) {
			stu[i] = stu[n];
			n--;
		}
	}
	for (a; a < n; a++) {
		stu[a - 1] = stu[a];
	}
	n--;
	save();
	printf("\n删除成功\n");
	getch();
}
void alter() {
	output();
	int a, b;
	printf("------------------------------\n            修改\n------------------------------\n");
	while (1) {
		printf("请输入序号(0返回菜单)：");
		scanf("%d", &a);
		if (a == 0) {
			break;
		}
		printf("修改(1.姓名 2.电话 3.地址 4.email)：");
		scanf("%d", &b);
		if (b == 1) {
			printf("请输入新的姓名：");
			scanf("%s", stu[a - 1].name);
		}
		if (b == 2) {
			printf("请输入新的电话：");
			scanf("%s", stu[a - 1].phone);
		}
		if (b == 3) {
			printf("请输入新的地址：");
			scanf("%s", stu[a - 1].address);
		}
		if (b == 4) {
			printf("请输入新的email：");
			scanf("%s", stu[a - 1].email);
		}
		printf("\n修改成功\n\n");
	}
	save();
	system("CLS");
}
void find() {
	int a;
	system("CLS");
	printf("------------------------------\n            查询\n------------------------------\n1.直接查询\n2.姓名由小到大查询\n3.姓名由大到小查询\n4.电话由小到大查询\n5.电话由大到小查询\n请输入1-5：");
	scanf("%d", &a);
	switch (a) {
	case 1:break;
	case 2:paixu1(); break;
	case 3:paixu2(); break;
	case 4:paixu3(); break;
	case 5:paixu4(); break;
	}
	system("CLS");
	printf("------------------------------\n            联系人\n------------------------------\n序号  姓名      电话                地址                email\n");
	for (int i = 0; i < n; i++) {
		printf("%-6d%-10s%-20s%-20s%-20s\n", i + 1, stu[i].name, stu[i].phone, stu[i].address, stu[i].email);
	}
	getch();
}
void main() {
	int a;
	set();
	read();
	printf("------------------------------\n        通讯录v2.0功能\n\n1.开放联系人邮箱，地址等信息存储功能\n2.查询新增排序功能，按姓名或电话由小到大、由大到小排序输出\n3.优化界面，修复部分bug\n4.新增删除全部联系人功能\n\n\n\n\n\n\n\n开发者:DWH\n版本:2.0\n\n------------------------------\n");
	getch();
	system("CLS");
	do {
		system("CLS");
		printf("------------------------------\n           通讯录\n------------------------------\n        1.新建联系人\n        2.删除联系人\n        3.修改联系人\n        4.查询联系人\n        0.退出\n------------------------------\n请输入0-4：");
		scanf("%d", &a);
		switch (a) {
		case 1:new(); break;
		case 2:delete(); break;
		case 3:alter(); break;
		case 4:find(); break;
		}
	} while (a != 0);
	system("CLS");
	printf("\n程序已退出\n");
}