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python实战，用户答题分享给大家。

主要包含内容，文件的读取，更改，保存。不同文件夹引入模块。输入，输出操作。随机获取数据操作

随机生成算数表达式，用户输入答案，正确记录分数，错误返回0，并把用户分数记录到文本文件中，如用户名不存在着新建用户

myPythonFunction.py包含三个函数

#coding=utf-8 
from random import randint 
from os import remove,rename 
 
#function 输入用户名字，获得用户得分，返回得分或者-1 
def getUserScore(userName): 
 try: 
  f = open("userScores.txt","r") 
  msg = f.readline() 
  score=-1; 
  while len(msg): 
   msg = msg.strip('\n') 
   msgArr = msg.split(",") 
   if(msgArr[0]==userName): 
    score = msgArr[1] 
    break 
   msg = f.readline() 
  f.close() 
  return score 
 except IOError: 
  f=open("userScores.txt","w") 
  f.close()  
  return -1 
 
#function 更新或者保存用户名字，用户得分 
def updateUserPoints(userName,score): 
 temp = getUserScore(userName) 
 if(temp==-1): 
  f = open("userScores.txt","a") 
  msg = userName+","+str(score)+"\n" 
  f.write(msg) 
  f.close() 
 else: 
  temp = open("userScores.tmp","w") 
  f = open("userScores.txt","r") 
  msg = f.readline() 
  while len(msg): 
   msg = msg.strip('\n') 
   msgArr = msg.split(",") 
   if(msgArr[0]==userName): 
    msgArr[1] = str(score) 
   temp.write(msgArr[0]+","+msgArr[1]+"\n")  
   msg = f.readline() 
  f.close() 
  temp.close() 
  remove("userScores.txt") 
  rename("userScores.tmp","userScores.txt") 
 
#function 获取随机生成的数学表达式 ，返回字符串   
def getQuestionString(): 
 operandList = [] 
 operatorList = [] 
 operatorDict=("+","-","*","**") 
 questionString = '' 
 for i in range(5): 
  operandList.append(randint(1,9)) 
 for j in range(4): 
  operatorList.append(operatorDict[randint(0,3)]) 
 for k in range(4): 
  questionString += str(operandList[k])+operatorList[k] 
 questionString +=str(operandList[4]) 
 return questionString

mathGame.py作为主函数

# -*- coding:utf-8 -*- 
import sys 
if 'H:\\python\func' not in sys.path: 
 sys.path.append('H:\\python\\func') 
import myPythonFunction as myfunc 
 
 
print("请输入你的名字：") 
use = input() 
use=use.strip("\n") 
count = 0 
if(myfunc.getUserScore(use)==-1): 
 print("你是个新用户！") 
 myfunc.updateUserPoints(use,0) 
else: 
 count = int(myfunc.getUserScore(use)) 
 print("你当前分数为：",count) 
 
while(1): 
 questionString=myfunc.getQuestionString() 
 result = eval(questionString) 
 print("问题：",questionString.replace("**","^")) 
 print("请输入你的答案：") 
 userResult = input() 
 userResult = userResult.strip("\n") 
 flag = True 
 if(userResult.startswith("-")): 
  userResult = userResult[1:] 
  flag = False 
 while((not userResult.isdigit()) and userResult!="exit"): 
  print("请输入数字，你的答案：") 
  userResult = input() 
  userResult = userResult.strip("\n") 
  if(userResult.startswith("-")): 
   userResult = userResult[1:] 
   flag = False 
 if(not flag): 
   userResult = "-"+userResult 
 if(userResult==str(result)): 
  print(1) 
  count = count+1 
 elif("exit"==userResult): 
  break  
 else: 
  print(0) 
myfunc.updateUserPoints(use,count) 
print("你当前分数为：",count) 
print("谢谢进入，欢迎下次再来！")