Python入門的36個例子 之 35 -> try – 一個使用的例子

源代碼下載：下載地址在這裏

 

# 039 while True: try: x = int(raw_input('Input a number:')) y = int(raw_input('Input a number:')) z = x / y except ValueError, ev: print 'That is not a valid number.', ev except ZeroDivisionError, ez: print 'Divisor is zero:', ez except: print 'Unexpected error.' raise else: print 'There is no error.' break # end of try # end of while print x,'/',y,'=',x/y

 

output：

 

Input a number:w
That is not a valid number. invalid literal for int() with base 10: 'w'
Input a number:9
Input a number:0
Divisor is zero: integer division or modulo by zero
Input a number:9
Input a number:3
There is no error.
9 / 3 = 3