Python入门的36个例子 之 33 -> try – 异常是不可避免的，关键是怎样处理

源代码下载：下载地址在这里

 

# 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