try-except
try:
num = int(input("Please input a number:\n"))
print(42 / num)
except ZeroDivisionError:
print("Divided by zero!")
except ValueError:
print("Wrong value!")
def division(DivideBy):
return 42 / DivideBy
try:
print(division(1))
print(division(0))
print(division(7))
except ZeroDivisionError:
print("Divided by zero!")
- 运行结果:
![在这里插入图片描述](https://img-blog.csdnimg.cn/00493d1bbd97419db3a986142e26fd52.png#pic_center)
try-except-else
- 和try-except类似,不过如果程序没有错误,也就是没有跳到except语句块,则执行else语句块,如果程序发生错误,即跳到except语句块,则直接跳过else语句块
- 示例程序:
def division(DivideBy):
return 42 / DivideBy
try:
num = int(input("Please input a integer:\n"))
print(division(num))
except ZeroDivisionError:
print("Divided by zero!")
except ValueError:
print("Wrong input!")
else:
print("No error. Good job!")
try-finally
def division(DivideBy):
return 42 / DivideBy
try:
num = int(input("Please input a integer:\n"))
print(division(num))
except ZeroDivisionError:
print("Divided by zero!")
except ValueError:
print("Wrong input!")
else:
print("No error. Good job!")
finally:
print("Finished")
- 运行结果:
![在这里插入图片描述](https://img-blog.csdnimg.cn/0e0423abf35b422fbaa134d4eef1275e.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBAY2luZGVyYW1hbmRh,size_20,color_FFFFFF,t_70,g_se,x_16#pic_center) ![在这里插入图片描述](https://img-blog.csdnimg.cn/6d88f378e6894b00a2fe6b787a634869.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBAY2luZGVyYW1hbmRh,size_20,color_FFFFFF,t_70,g_se,x_16#pic_center)
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