你可以用while循環來實現這一點。只要沒有break或sys.exit，它就返回到start，這意味著這里的每一個錯誤輸入。希望這有幫助def read_the_file(output):

while True:

print """

Do you want me to read your newly created file?

Type [Y]es or [N]o

"""

question = raw_input("> ")

reading = output.read()

if question == 'yes'or question == 'Y' or question == 'y':

print "BEGINNING OF FILE\n\n" + reading + "\n END OF FILE"

break # or sys.exit

elif question == 'no' or question == 'N' or question == 'n':

sys.exit[1]

else :

print "wrong input"

read_the_file(output_file)

但我建議你把代碼改一下。現在，無論你想不想，每次文件被讀取時。你可以在用戶說“是”后再這樣做。如果使用with語句，則文件將只為以下未指定部分打開。文件在這里被讀取。def read_the_file(output):

while True:

print """

Do you want me to read your newly created file?

Type [Y]es or [N]o

"""

question = raw_input("> ")

if question == 'yes'or question == 'Y' or question == 'y':

# Open and read file here

with open(output, 'r') as f:

reading = f.read()

# File is now closed

print "BEGINNING OF FILE\n\n" + reading + "\n END OF FILE"

break # or sys.exit

elif question == 'no' or question == 'N' or question == 'n':

sys.exit[1]

else :

print "wrong input"

read_the_file(output_file)

總結

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