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

源代碼下載：下載地址在這裏

 

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