如何编写程序自动从文件生成考试题目？

Question

我想写一个程序，能够自动生成一个样本考试。

比如，程序会提示用户提供四个问题类别，这些问题会从以下列表中选出，组成一个6道题的考试：

循环
函数
决策
数据类型
内置函数
递归
算法
自顶向下设计
对象

我还需要提示用户输入考试的总分，以及考试中有多少道选择题。

样本问题、它们的类别、分值（分数）以及是否是选择题的信息都存储在一个名为Questions的文件里，我需要打开这个文件来读取所有的问题。然后，程序应该根据用户输入的内容，从问题文件中随机选择问题。

这个文件的格式是记事本中的文本文件，内容大致如下：

Multiple Choice Questions
Loops Questions
1. Which of the following is not a part of the IPO pattern?
a)Input     b)Program   c)Process   d)Output

2. In Python, getting user input is done with a special expression called.
a)for       b)read      c)simultaneous assignment   d)input

Function Questions
3. A Python function definition begins with
a)def       b)define    c)function  d)defun

4.A function with no return statement returns
a)nothing   b)its parameters    c)its variables     d)None

Decision Questions
5. An expression that evaluates to either true or false is called
a)operational   b)Boolean   c)simple    d)compound

6.The literals for type bool are
a)T,F       b)True,False    c)true,false    d)procrastination

DataTypes Questions
7. Which of the following is not a Python type-conversion function?
a)float     b)round     c)int       d)long

8.The number of distinct values that can be represented using 5 bits is
a)5     b)10        c)32        d)50

Built-in Functions
9.The part of a program that uses a function is called the
a)user      b)caller    c)callee    d)statement

10.A function can send output back to the program with a(n)
a)return    b)print     c)assignment    d)SASE

Recursion
11.Recursions on sequence often use this as a base case:
a)0     b)1     c)an empty sequence d)None

12.The recursive Fibonacci function is inefficient because
a)it does many repeated computations    b)recursion is inherently inefficient compared to iteration
c)calculating Fibonacci numbers is intractable  d)fibbing is morally wrong

Algorithms
13.An algorithm is like a
a)newspaper b)venus flytrap     c)drum      d)recipe

14.Which algorithm requires time directly proportional to the size of the input?
a)linear search b)binary search     c)merge sort    d)selection sort

Top-down design
15.Which of the following is not one of the fundamental characteristics of object-oriented design/programming?
a)inheritance   b)polymorphism      c)generally d)encapsulation

Objects
16.What graphics class would be best for drawing a square?
a)Square    b)Polygon   c)Line      d)Rectangle

17.A user interface organized around visual elements and users actions is called a (n)
a)GUI       b)application   c)windower  d)API

这是我目前写的代码。我该如何改进它呢？

def main():
    infile = open("30075165.txt","r")
    categories = raw_input("Please enter the four categories that are in the exam: ")
    totalmarks = input("Please enter the total marks in the exam: ")
    mc = input("Please enter the amount of multiple choice questions in the exam: ")

main()

数据存储文件读取随机选择算法设计编程设计自动生成考试题目问题类别选择题

如何编写程序自动从文件生成考试题目？

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