从0基础开始：一步步打造你的第一个软件

import random

# 变量：存储秘密数字和用户猜测
secret = random.randint(1, 100)
guess = None
tries = 0

print("猜一个1到100之间的数字")

# 循环：直到猜对为止
while guess != secret:
    guess = int(input("输入你的猜测: "))
    tries += 1
    # 条件：判断大小
    if guess < secret:
        print("太小了")
    elif guess > secret:
        print("太大了")
    else:
        print(f"恭喜！你用了{tries}次猜对了！")

# 记录一笔账
def add_record():
    date = input("日期(如2025-08-01): ")
    category = input("类别(餐饮/交通/娱乐): ")
    amount = float(input("金额: "))
    with open("records.txt", "a", encoding="utf-8") as f:
        f.write(f"{date},{category},{amount}\n")
    print("已记录")

# 查看所有记录
def view_records():
    try:
        with open("records.txt", "r", encoding="utf-8") as f:
            for line in f:
                print(line.strip())
    except FileNotFoundError:
        print("暂无记录")

# 主菜单
while True:
    choice = input("输入1添加，2查看，3退出: ")
    if choice == "1":
        add_record()
    elif choice == "2":
        view_records()
    elif choice == "3":
        break
    else:
        print("无效选项")

from flask import Flask, request, redirect

app = Flask(__name__)

@app.route('/')
def index():
    return '''
    <form method="post" action="/add">
        日期: <input name="date"><br>
        类别: <input name="category"><br>
        金额: <input name="amount"><br>
        <button type="submit">添加</button>
    </form>
    <a href="/view">查看记录</a>
    '''

@app.route('/add', methods=['POST'])
def add():
    date = request.form['date']
    category = request.form['category']
    amount = request.form['amount']
    with open("records.txt", "a") as f:
        f.write(f"{date},{category},{amount}\n")
    return redirect('/')

if __name__ == '__main__':
    app.run(debug=True)