C语言通讯录源代码

以下是一个简单的C语言通讯录源代码示例：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_CONTACTS 100

struct contact {
    char name[50];
    char phone[15];
};

struct contact contacts[MAX_CONTACTS];
int num_contacts = 0;

void add_contact() {
    if (num_contacts >= MAX_CONTACTS) {
        printf("Sorry, the address book is full.\n");
        return;
    }

    struct contact new_contact;

    printf("Enter name: ");
    fgets(new_contact.name, 50, stdin);
    new_contact.name[strcspn(new_contact.name, "\n")] = '\0'; // remove newline character

    printf("Enter phone number: ");
    fgets(new_contact.phone, 15, stdin);
    new_contact.phone[strcspn(new_contact.phone, "\n")] = '\0'; // remove newline character

    contacts[num_contacts++] = new_contact;

    printf("New contact added.\n");
}

void list_contacts() {
    printf("Contact list:\n");

    for (int i = 0; i < num_contacts; i++) {
        printf("%s: %s\n", contacts[i].name, contacts[i].phone);
    }
}

void search_contacts() {
    char search_term[50];

    printf("Enter search term: ");
    fgets(search_term, 50, stdin);
    search_term[strcspn(search_term, "\n")] = '\0'; // remove newline character

    printf("Search results:\n");

    for (int i = 0; i < num_contacts; i++) {
        if (strstr(contacts[i].name, search_term) != NULL) {
            printf("%s: %s\n", contacts[i].name, contacts[i].phone);
        }
    }
}

int main() {
    char input[10];

    while (1) {
        printf("Enter command (add, list, search, or quit): ");
        fgets(input, 10, stdin);
        input[strcspn(input, "\n")] = '\0'; // remove newline character

        if (strcmp(input, "add") == 0) {
            add_contact();
        } else if (strcmp(input, "list") == 0) {
            list_contacts();
        } else if (strcmp(input, "search") == 0) {
            search_contacts();
        } else if (strcmp(input, "quit") == 0) {
            printf("Goodbye!\n");
            return 0;
        } else {
            printf("Invalid command.\n");
        }
    }
}

这个程序使用结构体来存储联系人的姓名和电话号码，并提供了添加、列出、搜索和退出功能。请注意，此代码示例可能并不完美，仅供参考。