用c语言代码实现以下功能:基本资料数据的维护管理 (1).添加：(批量、单个)添加员工基本资料数据。基本资料数据包括职工号、姓名、性别、部 门、岗位、工龄。 (2).修改：根据职工号来修改任意员工的除职工号外的其他基本资料数据。 (3).删除：根据职工号删除一个员工。 (4).查询：根据职工号查询一个员工的基本资料数据。

好的，以下是一个示例代码，它演示了如何通过 C 语言来实现基本资料数据的维护管理，包括添加、修改、删除和查询。

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

#define MAX_EMPLOYEES 100

// 定义员工结构体
struct Employee {
    int id; // 职工号
    char name[50]; // 姓名
    char gender[10]; // 性别
    char department[50]; // 部门
    char position[50]; // 岗位
    int years_of_service; // 工龄
};

// 定义全局变量，存储员工信息
struct Employee employees[MAX_EMPLOYEES];
int num_employees = 0;

// 声明函数
void add_employee();
void add_employees();
void modify_employee();
void delete_employee();
void query_employee();
void print_employee(struct Employee employee);

int main() {
    int choice;

    while (1) {
        printf("\n1. Add employee\n");
        printf("2. Add employees\n");
        printf("3. Modify employee\n");
        printf("4. Delete employee\n");
        printf("5. Query employee\n");
        printf("6. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                add_employee();
                break;
            case 2:
                add_employees();
                break;
            case 3:
                modify_employee();
                break;
            case 4:
                delete_employee();
                break;
            case 5:
                query_employee();
                break;
            case 6:
                exit(0);
            default:
                printf("Invalid choice.\n");
        }
    }

    return 0;
}

// 添加单个员工
void add_employee() {
    struct Employee employee;

    printf("\nEnter employee ID: ");
    scanf("%d", &employee.id);

    printf("Enter employee name: ");
    scanf("%s", employee.name);

    printf("Enter employee gender: ");
    scanf("%s", employee.gender);

    printf("Enter employee department: ");
    scanf("%s", employee.department);

    printf("Enter employee position: ");
    scanf("%s", employee.position);

    printf("Enter employee years of service: ");
    scanf("%d", &employee.years_of_service);

    employees[num_employees] = employee;
    num_employees++;

    printf("Employee added successfully.\n");
}

// 添加多个员工
void add_employees() {
    int num_employees_to_add;

    printf("\nEnter the number of employees to add: ");
    scanf("%d", &num_employees_to_add);

    for (int i = 0; i < num_employees_to_add; i++) {
        printf("\nEnter employee #%d information:\n", i + 1);
        add_employee();
    }
}

// 修改员工信息
void modify_employee() {
    int id_to_modify;
    int found = 0;

    printf("\nEnter employee ID to modify: ");
    scanf("%d", &id_to_modify);

    for (int i = 0; i < num_employees; i++) {
        if (employees[i].id == id_to_modify) {
            printf("Enter employee name: ");
            scanf("%s", employees[i].name);

            printf("Enter employee gender: ");
            scanf("%s", employees[i].gender);

            printf("Enter employee department: ");
            scanf("%s", employees[i].department);

            printf("Enter employee position: ");
            scanf("%s", employees[i].position);

            printf("Enter employee years of service: ");
            scanf("%d", &employees[i].years_of_service);

            printf("Employee modified successfully.\n");

            found = 1;
            break;
        }
    }

    if (!found) {
        printf("Employee not found.\n");
    }
}

// 删除员工
void delete_employee() {
    int id_to_delete;
    int found = 0;

    printf("\nEnter employee ID to delete: ");
    scanf("%d", &id_to_delete);

    for (int i = 0; i < num_employees; i++) {
        if (employees[i].id == id_to_delete) {
            for (int j = i; j < num_employees - 1; j++) {
                employees[j] = employees[j + 1];
            }

            num_employees--;

            printf("Employee deleted successfully.\n");

            found = 1;
            break;
        }
    }

    if (!found) {
        printf("Employee not found.\n");
    }
}

// 查询员工信息
void query_employee() {
    int id_to_query;
    int found = 0;

    printf("\nEnter employee ID to query: ");
    scanf("%d", &id_to_query);

    for (int i = 0; i < num_employees; i++) {
        if (employees[i].id == id_to_query) {
            print_employee(employees[i]);

            found = 1;
            break;
        }
    }

    if (!found) {
        printf("Employee not found.\n");
    }
}

// 打印员工信息
void print_employee(struct Employee employee) {
    printf("\nEmployee ID: %d\n", employee.id);
    printf("Employee name: %s\n", employee.name);
    printf("Employee gender: %s\n", employee.gender);
    printf("Employee department: %s\n", employee.department);
    printf("Employee position: %s\n", employee.position);
    printf("Employee years of service: %d\n", employee.years_of_service);
}

在上面的示例代码中，我们首先定义了一个员工结构体来表示员工的基本资料数据。然后，我们定义了一个全局变量 `employees` 数组来存储所有员工的信息，以及一个变量 `num_employees` 来记录员工数量。接下来，我们实现了四个函数，分别用于添加单个员工、添加多个员工、修改员工信息和删除员工。最后，我们实现了一个查询员工信息的函数，并且使用 `switch` 语句来调用这些函数。

请注意，上面的代码仅提供了一个示例。在实际应用中，您可能需要添加更多的错误检查和输入验证，以确保输入的数据是有效和安全的。同时，您需要将员工信息保存到文件中，并在程序启动时从文件中读取员工信息。