Python - 使我的代码更经济

Question

我需要一些帮助使代码更经济 - 我相信，我可以削减很多行。

该代码是关于一个测验，将问10个问题，你的分数将在最后输出。

import random 
studentname=input("what is your name?:") 
score=0 
trueanswer=0 

def question(): 
    global operation 
    global number1 
    global number2 
    global studentanswer 
    global score 
    number1=random.randrange(1,10) 
    number2=random.randrange(1,10) 
    operation=random.choice(["*","-","+"]) 
    print("what is", number1,operation,number2,"?:") 
    studentanswer=int(input("insert answer:")) 

def checking(): 
    global score 
    if operation == "*": 
     trueanswer = number1*number2 
     if studentanswer == trueanswer: 
      print("correct") 
      score=score+1 
     else: 
      print("incorrect") 
      score=score 
    elif operation == "-": 
     trueanswer = number1-number2 
     if studentanswer == trueanswer: 
      print("correct") 
      score=score+1 
     else: 
      print("incorrect") 
      score=score 
    elif operation == "+": 
     trueanswer = number1+number2 
     if studentanswer == trueanswer: 
      print("correct") 
      score = score+1 
     else: 
      print("incorrect") 
      score=score 

def main(): 
    for i in range (10): 
     question() 
     checking() 
    print("your score is", score) 

main() 

Answer 1

您可以将整个检查功能降低这样的：

def checking(): 
    trueanswer = eval(str(number1)+operation+str(number2)) 
    if studentanswer == trueanswer: 
     print("correct") 
     score=score+1 
    else: 
     print("incorrect") 
     score=score