用 C 语言编制某单位的职工档案管理程序（职工不超过 200 人），每个职工档案的基本数据项包括职工号，姓名，性别，年龄，部门，住址，基本工资，文化程度等，其他项目可根据需要自行设定。 要求在程序中用不同函数完成以下各功能要求：1.从键盘输入这些数据，并按职工号从小到大的顺序保存到 word 文件 zgzl.dat 中 2.可根据职工姓名查找并输出该职工档案 3.可按部门打印出某个部门的职工工资表（包含职工号、姓名、基本工资等项），并查找出全厂中基本工资最高的职工和基本工资最低的职工 4.打印全厂职工的年龄分布情况（包括<35 岁、36～45 岁、46～55 岁、>55 岁各年龄段的人数）

以下是用 C 语言编写的职工档案管理程序：

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

#define MAX_EMPLOYEE 200

struct Employee {
    char id[10];
    char name[20];
    char gender[10];
    int age;
    char department[20];
    char address[50];
    float salary;
    char education[20];
};

struct Employee employees[MAX_EMPLOYEE];
int numEmployees = 0;

void addEmployee() {
    if (numEmployees >= MAX_EMPLOYEE) {
        printf("The employee list is full.\n");
        return;
    }

    struct Employee employee;
    printf("Enter the employee's information:\n");

    printf("ID: ");
    scanf("%s", employee.id);

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

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

    printf("Age: ");
    scanf("%d", &employee.age);

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

    printf("Address: ");
    scanf("%s", employee.address);

    printf("Salary: ");
    scanf("%f", &employee.salary);

    printf("Education: ");
    scanf("%s", employee.education);

    employees[numEmployees++] = employee;
}

void saveEmployees() {
    FILE *file = fopen("zgzl.dat", "wb");
    if (file == NULL) {
        printf("Cannot open file.\n");
        return;
    }

    fwrite(&numEmployees, sizeof(int), 1, file);
    fwrite(employees, sizeof(struct Employee), numEmployees, file);

    fclose(file);

    printf("Employee list saved to zgzl.dat.\n");
}

void loadEmployees() {
    FILE *file = fopen("zgzl.dat", "rb");
    if (file == NULL) {
        printf("Cannot open file.\n");
        return;
    }

    fread(&numEmployees, sizeof(int), 1, file);
    fread(employees, sizeof(struct Employee), numEmployees, file);

    fclose(file);
}

void searchEmployee() {
    char name[20];
    printf("Enter the name of the employee you want to search: ");
    scanf("%s", name);

    for (int i = 0; i < numEmployees; i++) {
        if (strcmp(employees[i].name, name) == 0) {
            printf("ID: %s\n", employees[i].id);
            printf("Name: %s\n", employees[i].name);
            printf("Gender: %s\n", employees[i].gender);
            printf("Age: %d\n", employees[i].age);
            printf("Department: %s\n", employees[i].department);
            printf("Address: %s\n", employees[i].address);
            printf("Salary: %.2f\n", employees[i].salary);
            printf("Education: %s\n", employees[i].education);
            return;
        }
    }

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

void printSalaryTable() {
    char department[20];
    printf("Enter the department you want to print: ");
    scanf("%s", department);

    float maxSalary = -1, minSalary = 1e9;
    int numEmployeesInDepartment = 0;

    printf("ID\tName\tSalary\n");
    for (int i = 0; i < numEmployees; i++) {
        if (strcmp(employees[i].department, department) == 0) {
            printf("%s\t%s\t%.2f\n", employees[i].id, employees[i].name, employees[i].salary);
            numEmployeesInDepartment++;

            if (employees[i].salary > maxSalary) {
                maxSalary = employees[i].salary;
            }

            if (employees[i].salary < minSalary) {
                minSalary = employees[i].salary;
            }
        }
    }

    if (numEmployeesInDepartment == 0) {
        printf("No employee found in the department.\n");
    } else {
        printf("Department: %s\n", department);
        printf("Number of employees: %d\n", numEmployeesInDepartment);
        printf("Highest salary: %.2f\n", maxSalary);
        printf("Lowest salary: %.2f\n", minSalary);
    }
}

void printAgeDistribution() {
    int numUnder35 = 0, num35To45 = 0, num46To55 = 0, numOver55 = 0;

    for (int i = 0; i < numEmployees; i++) {
        if (employees[i].age < 35) {
            numUnder35++;
        } else if (employees[i].age >= 35 && employees[i].age <= 45) {
            num35To45++;
        } else if (employees[i].age >= 46 && employees[i].age <= 55) {
            num46To55++;
        } else {
            numOver55++;
        }
    }

    printf("<35: %d\n", numUnder35);
    printf("36-45: %d\n", num35To45);
    printf("46-55: %d\n", num46To55);
    printf(">55: %d\n", numOver55);
}

int main() {
    loadEmployees();

    while (1) {
        printf("1. Add employee\n");
        printf("2. Save employee list\n");
        printf("3. Search employee\n");
        printf("4. Print salary table\n");
        printf("5. Print age distribution\n");
        printf("6. Exit\n");

        int choice;
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                addEmployee();
                break;
            case 2:
                saveEmployees();
                break;
            case 3:
                searchEmployee();
                break;
            case 4:
                printSalaryTable();
                break;
            case 5:
                printAgeDistribution();
                break;
            case 6:
                return 0;
            default:
                printf("Invalid choice.\n");
        }

        printf("\n");
    }
}

程序首先定义了一个 `Employee` 结构体，表示职工档案的基本数据项。然后定义了一个 `employees` 数组来保存所有职工档案，以及一个 `numEmployees` 变量来记录当前职工档案的数量。

程序中包含以下函数：

- `addEmployee()`：从键盘输入职工信息，并将其保存到 `employees` 数组中。
- `saveEmployees()`：将 `employees` 数组中的职工信息保存到文件 `zgzl.dat` 中。
- `loadEmployees()`：从文件 `zgzl.dat` 中加载职工信息到 `employees` 数组中。
- `searchEmployee()`：根据职工姓名查找并输出该职工档案。
- `printSalaryTable()`：根据部门打印出该部门的职工工资表，并查找出全厂中基本工资最高的职工和基本工资最低的职工。
- `printAgeDistribution()`：打印全厂职工的年龄分布情况。

主函数中使用一个无限循环来接受用户的输入，并根据用户的选择调用相应的函数来执行相应的操作。程序在每次操作后会输出一个空行，以及下一次操作的提示。