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Copy pathdo_try.py
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65 lines (56 loc) · 1.27 KB
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#!/bin/env python3
# -*- coding:utf-8 -*-
# try内代码块出错时，后续语句不会被执行，执行except捕获，反之相反
try:
print('try...')
r = 10 / 0
print('result:', r)
except ZeroDivisionError as e:
print('except:', e)
finally:
print('finally...')
print('END')
# except捕获多个的错误
try:
print('try...')
r = 10 / int('a')
print('result:', r)
except ValueError as e:
print('ValueError:', e)
except ZeroDivisionError as e:
print('ZeroDivisionError:', e)
finally:
print('finally...')
print('END')
# except捕获没有错误执行else语句
try:
print('try...')
r = 10 / int('2')
print('result:', r)
except ValueError as e:
print('ValueError:', e)
except ZeroDivisionError as e:
print('ZeroDivisionError:', e)
else:
print('no error!')
finally:
print('finally...')
print('END')
# 所有的错误类型都继承自BaseException，父类可捕获子类错误，跨越多层捕获错误
try:
foo(s)
except ValueError as e:
print('ValueError')
except UnicodeError as e:
print('UnicodeError')
def foo(s):
return 10 / int(s)
def bar(s):
return foo(s) * 2
def main():
try:
bar('0')
except Exception as e:
print('Error:', e)
finally:
print('finally...')