c语言顺序表员工绩效管理系统实现创建， 显示， 清空， 查询， 删除， 添加， 修改的功能

下面是一个基于顺序表实现员工绩效管理系统的C语言代码，包括创建、显示、清空、查询、删除、添加和修改功能：

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

#define MAX_EMPLOYEES 100

typedef struct {
    char name[50];
    int id;
    int salary;
    int performance;
} Employee;

typedef struct {
    Employee employees[MAX_EMPLOYEES];
    int n;
} EmployeeList;

void createList(EmployeeList *list) {
    list->n = 0;
}

void display(EmployeeList *list) {
    printf("ID\tName\tSalary\tPerformance\n");
    for (int i = 0; i < list->n; i++) {
        Employee employee = list->employees[i];
        printf("%d\t%s\t%d\t%d\n", employee.id, employee.name, employee.salary, employee.performance);
    }
}

void clearList(EmployeeList *list) {
    list->n = 0;
}

int search(EmployeeList *list, int id) {
    for (int i = 0; i < list->n; i++) {
        if (list->employees[i].id == id) {
            return i;
        }
    }
    return -1;
}

void delete(EmployeeList *list, int id) {
    int index = search(list, id);
    if (index != -1) {
        for (int i = index; i < list->n - 1; i++) {
            list->employees[i] = list->employees[i + 1];
        }
        list->n--;
    }
}

void add(EmployeeList *list, char name[], int id, int salary) {
    Employee employee = {0};
    strcpy(employee.name, name);
    employee.id = id;
    employee.salary = salary;
    employee.performance = 0;
    list->employees[list->n++] = employee;
}

void modify(EmployeeList *list, int id, int salary) {
    int index = search(list, id);
    if (index != -1) {
        list->employees[index].salary = salary;
    }
}

int main() {
    EmployeeList list;
    createList(&list);
    add(&list, "Alice", 1, 5000);
    add(&list, "Bob", 2, 6000);
    add(&list, "Charlie", 3, 7000);
    add(&list, "David", 4, 8000);
    printf("Initial list:\n");
    display(&list);
    printf("\n");

    printf("Searching for employee with ID 3:\n");
    int index = search(&list, 3);
    if (index != -1) {
        Employee employee = list.employees[index];
        printf("Found employee: %s, %d\n", employee.name, employee.salary);
    } else {
        printf("Employee not found.\n");
    }
    printf("\n");

    printf("Deleting employee with ID 2:\n");
    delete(&list, 2);
    display(&list);
    printf("\n");

    printf("Adding new employee:\n");
    add(&list, "Eve", 5, 9000);
    display(&list);
    printf("\n");

    printf("Modifying employee with ID 4:\n");
    modify(&list, 4, 8500);
    display(&list);
    printf("\n");

    printf("Clearing the list:\n");
    clearList(&list);
    display(&list);
    printf("\n");

    return 0;
}

在这个代码中，我们定义了 `createList`、`display`、`clearList`、`search`、`delete`、`add` 和 `modify` 这些函数来实现各种功能。在主函数中，我们先创建了一个空列表，然后添加了四个员工。接着，我们对员工列表进行了各种操作，例如查找、删除、添加和修改员工信息等。最后，我们清空了列表并打印了结果。