Python使用列表和字典实现简单的考试系统详解

"users": {"decheng": "123456", "zhuogan": "123456", "yangyang": "123456", "jiashun": "123456", "junze": "123456"}

"tests": ["36+5", "4+17", "13*9"] 

data = {
    "users": {"decheng": "123456", "zhuogan": "123456", "yangyang": "123456", "jiashun": "123456", "junze": "123456"},
    "tests": ["36+5", "4+17", "13*9"]
}

def login():
    for i in range(3):
        name = input("please input your name: ")
        pwd = input("please input your passwd: ")
        if name in data["users"] and data["users"][name] == pwd:
            print("{} will test......".format(name))
            return name
        else:
            print("username or passwd error!!!")
    print("system will exit......")
    return ""

def test():
    right = 0
    error = 0
    for item in data["tests"]:
        answer = input(item + "=")
        if int(answer) == eval(item):
            right += 1
        else:
            error += 1
    return error, right

user_name = login()
if user_name:
    error, right = test()
    print("用户{}参加测试，一共{}道题，做对{}题，做错{}题".format(user_name, len(data["tests"]), right, error))

# -*- coding: utf-8 -*-
"""
funcs: 列表和字典的应用
考试系统：
1 用户登录，用户名，密码正确可登录
2 配置练习题
3 循环展示，等待用户输入答案
4 计算预期答案，给出评分
"""
data = {
    "users": {"decheng": "123456", "zhuogan": "123456", "yangyang": "123456", "jiashun": "123456",
              "junze": "123456"},
    "tests":
        ["36+5", "4+17", "13*9"]
}
def login():
    for i in range(3):
        name = input("please input your name: ")
        pwd = input("please input your passwd: ")
        if name in data["users"] and data["users"][name] == pwd:
            print("{} will test......".format(name))
            return name
        else:
            print("username or passwd error!!!")
    print("system will exit......")
    return ""
def test():
    right = 0
    error = 0
    for item in data["tests"]:
        answer = input(item + "=")
        if int(answer) == eval(item):
            right += 1
        else:
            error += 1
    return error, right
user_name = login()
if user_name:
    error, right = test()
    print("用户{}参加测试，一共{}道题，做对{}题，做错{}题".format(user_name, len(data["tests"]), right, error))