求解：try_except捕获ctrl+D和ctrl+C的异常的问题
本帖最后由 jasonjean 于 2011-02-17 15:59 编辑代码内容：
#!/usr/bin/env python
while True:
try:
filename=raw_input('Enter the filename:')
fobj=open(filename,'r')
except (IOError,EOFError,KeyboardInterrupt),e:
print str(e)
else:
break
for eachLines in fobj:
print eachLines,
print fobj.closed
fobj.close()
print fobj.closed
期望是：当输入的文件无法正常打开，或者用户按下了ctrl+D，或ctrl+C，程序不会退出，且提示重新输入需要打开的文件名。
实际执行结果发现一个问题：
当按下了ctrl+D之后紧接着按Ctrl+C，则程序退出，如下：
# ./9-4-1.py
Enter the filename: #ctrl+C
Enter the filename: #ctrl+C
Enter the filename: #ctrl+D
Enter the filename: #ctrl+D
Enter the filename:Traceback (most recent call last): #这里是ctrl+C，为何这个异常就没有捕捉到了呢？？？
File "./9-4-1.py", line 4, in ?
filename=raw_input('Enter the filename:')
KeyboardInterrupt 本帖最后由 tank064 于 2014-07-07 17:23 编辑
在外面再加一个try$ python test.py
Enter the filename:
Enter the filename:
Enter the filename:
Enter the filename:
Enter the filename:
Enter the filename:
Enter the filename:
Enter the filename:test.py
#!/usr/bin/env python
import sys
while True:
try:
try:
filename=raw_input('Enter the filename:')
fobj=open(filename,'r')
for line in fobj:
sys.stdout.write(line)
except (IOError, EOFError, KeyboardInterrupt), e:
sys.stdout.write(str(e) + '\n')
else:
break
except (Exception, KeyboardInterrupt), e:
sys.stdout.write(str(e) + '\n')
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