[已解决]replace报错

hrp

1. f = open("D:\\filetxt2.txt", 'w')
   
2. str1 = "Hello,World!"
   
3. f.write(str1)
   
4. f.close()
   
5. f = open("D:\\filetxt2.txt", 'r+')
   
6. content = f.read()
   
7. if "World" in content:
   
8.     content_new = content.replace("World", "Python")
   
9.     # f = f_new
   
10.     # content = f.read()
    
11.     print(content_new)
    
12. f.close()
    

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