在 Python 中从键盘读取用户输入

name = input("你的名字：")
print(f"你好，{name}")

age = input("你的年龄：")
print(type(age)) # <class 'str'>

age = int(input("你的年龄："))
print(type(age)) # <class 'int'>

>>> age = int(input("你的年龄："))
你的年龄：三十
Traceback (most recent call last):
  ...
ValueError: invalid literal for int() with base 10: '三十'

while True:
    try:
        age = int(input("你的年龄："))
    except ValueError:
        print("请使用数字输入你的年龄，例如24")
    else:
        break

print(f"明年, 你将 {age + 1} 岁。")

user_colors = input("输入三种颜色，用,隔开: ")
# orange, purple, green
colors = [s.strip() for s in user_colors.split(",")]

print(f"颜色的列表为: {colors}")

import os
import getpass

def verify_email(email):
    allowed_emails = [
        email.strip() for email in os.getenv("ALLOWED_EMAILS").split(",")
    ]
    return email in allowed_emails

def main():
    email = getpass.getpass("输入邮箱地址：")
    if verify_email(email):
        print("有效的邮箱，通过。")
    else:
        print("无效的邮箱，拒绝。")

if __name__ == "__main__":
    main()

$env:ALLOWED_EMAILS = 'info@example.com'

export ALLOWED_EMAILS=info@example.com

import pyinputplus as pyip

age = pyip.inputInt(prompt="你的年龄：", min=0, max=120)
print(f"你的年龄是 {age}")

import pyinputplus as pyip

account_balance = 1000

print("欢迎来到 REALBank")
while True:
    print(f"\n你的余额为: ￥{account_balance}")
    transaction_type = pyip.inputChoice(["存钱", "取钱", "退出"])

    if transaction_type == "退出":
        break
    elif transaction_type == "存钱":
        deposit_amount = pyip.inputInt(
            prompt="输入金额 (最大 ￥10,000): ￥", min=0, max=10000
        )
        account_balance += deposit_amount
        print(f"存入 ￥{deposit_amount}.")
    elif transaction_type == "取钱":
        withdrawal_amount = pyip.inputInt(
            prompt="输入金额: ￥", min=0, max=account_balance
        )
        account_balance -= withdrawal_amount
        print(f"取出 ￥{withdrawal_amount}.")

print("\n感谢选择 REALBank。再见！")