为什么会显示io.UnsupportedOperation:不可写

Question

导入pygame，随机

def quiteGame()：

readFile = open("BestScore.txt")
bestScoreFile = readFile.read()
readFile.close()
writeFile = open("BestScore.txt")
iScore = max(score,int(bestScoreFile))
print('Your Score is :', score)
print('Highest Score is :', iScore)
writeFile.write(str(iScore))
writeFile.close()
pygame.quit()

为什么会有消息“writeFile.write(str(iScore)) io.UnsupportedOperation: not writable”显示在那里。

Answer 1

为了写入文件，你需要在“可写”模式下打开它。默认情况下，python以“只读”模式打开任何.txt文件

要以可写模式打开文件，请执行以下操作：

writeFile = open("BestScore.txt","w") #Opens BestScore.txt in writable mode
[...]#Other code

因此，最终的代码应该如下所示：

import pygame, random

def quiteGame():

    readFile = open("BestScore.txt")
    bestScoreFile = readFile.read()
    readFile.close()
    writeFile = open("BestScore.txt","w")
    iScore = max(score,int(bestScoreFile))
    print('Your Score is :', score)
    print('Highest Score is :', iScore)
    writeFile.write(str(iScore))
    writeFile.close()
    pygame.quit()