办公考勤系统python代码实现

办公考勤系统是一个较为复杂的项目，需要涉及到多个方面的知识，如数据库设计、Web开发、前端设计等。以下是一个简单的Python代码实现考勤系统的示例，仅供参考：

1. 首先，安装并导入Flask框架

pip install Flask
from flask import Flask, request, render_template

2. 设计数据库结构

import sqlite3

conn = sqlite3.connect('attendance_system.db')
c = conn.cursor()

c.execute('''CREATE TABLE IF NOT EXISTS users
             (id integer primary key autoincrement, name text, email text unique, password text)''')

c.execute('''CREATE TABLE IF NOT EXISTS attendance
             (id integer primary key autoincrement, user_id integer, date text, status text)''')

conn.commit()
conn.close()

3. 实现用户注册与登录

@app.route('/register', methods=['GET', 'POST'])
def register():
    if request.method == 'POST':
        name = request.form['name']
        email = request.form['email']
        password = request.form['password']
        conn = sqlite3.connect('attendance_system.db')
        c = conn.cursor()
        c.execute("INSERT INTO users (name, email, password) VALUES (?,?,?)", (name, email, password))
        conn.commit()
        conn.close()
        return "User registered successfully!"
    return render_template('register.html')

@app.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'POST':
        email = request.form['email']
        password = request.form['password']
        conn = sqlite3.connect('attendance_system.db')
        c = conn.cursor()
        c.execute("SELECT * FROM users WHERE email=? AND password=?", (email, password))
        user = c.fetchone()
        conn.close()
        if user:
            session['user_id'] = user[0]
            return redirect(url_for('home'))
        else:
            return "Invalid email or password"
    return render_template('login.html')

4. 实现考勤打卡功能

@app.route('/clock_in', methods=['GET', 'POST'])
def clock_in():
    if request.method == 'POST':
        user_id = session['user_id']
        date = datetime.now().strftime("%Y-%m-%d")
        conn = sqlite3.connect('attendance_system.db')
        c = conn.cursor()
        c.execute("SELECT * FROM attendance WHERE user_id=? AND date=?", (user_id, date))
        attendance = c.fetchone()
        if attendance:
            return "You have already clocked in today"
        else:
            c.execute("INSERT INTO attendance (user_id, date, status) VALUES (?,?,?)", (user_id, date, 'Clocked In'))
            conn.commit()
            conn.close()
            return "Clock in success!"
    return render_template('clock_in.html')

@app.route('/clock_out', methods=['GET', 'POST'])
def clock_out():
    if request.method == 'POST':
        user_id = session['user_id']
        date = datetime.now().strftime("%Y-%m-%d")
        conn = sqlite3.connect('attendance_system.db')
        c = conn.cursor()
        c.execute("SELECT * FROM attendance WHERE user_id=? AND date=?", (user_id, date))
        attendance = c.fetchone()
        if not attendance:
            return "You haven't clocked in yet"
        elif attendance[3] == 'Clocked Out':
            return "You have already clocked out today"
        else:
            c.execute("UPDATE attendance SET status=? WHERE id=?", ('Clocked Out', attendance[0]))
            conn.commit()
            conn.close()
            return "Clock out success!"
    return render_template('clock_out.html')

5. 实现考勤记录查询功能

@app.route('/attendance', methods=['GET', 'POST'])
def attendance():
    user_id = session['user_id']
    conn = sqlite3.connect('attendance_system.db')
    c = conn.cursor()
    c.execute("SELECT * FROM attendance WHERE user_id=?", (user_id,))
    records = c.fetchall()
    conn.close()
    return render_template('attendance.html', records=records)

以上是一个简单的Python代码实现考勤系统的示例，仅供参考。实际项目中，需要根据需求进行更加细致的设计和实现。