Python入門的36個例子 之 33 -> try – 異常是不可避免的，關鍵是怎樣處理

原始碼下載：在這裡

 

# 037<br />fileName = ''<br />while 1:<br /> fileName = raw_input("Input a file name:")<br /> if fileName == 'q':<br /> break<br /> try:<br /> f = file(fileName, 'r')<br /> print 'Opened a file.'<br /> except:<br /> print 'There is no file named', fileName<br /> # end of try and except<br /> f.close()<br /># end of while

 

output：

 

Input a file name:haha
There is no file named haha
Input a file name:txt
There is no file named txt
Input a file name:1
There is no file named 1
Input a file name:037_Exception.py
Opened a file.
Input a file name:q