#!/usr/bin/python

aaa=input()

print("the ?file is ", aaa)

f = open('aaa')

iter_f = iter(f)

lines=0

for line in iter_f:

? ? lines += 1

print("is", lines)

運(yùn)行結(jié)果報(bào)錯(cuò)：
[root@host36?~]#?python?test.py
1.txt
Traceback?(most?recent?call?last):
??File?"test.py",?line?2,?in?<module>
????aaa=input()
??File?"<string>",?line?1
????1.txt
???????^
SyntaxError:?unexpected?EOF?while?parsing
[root@host36?~]#