Python 初探异常

try：
	<代码块1>  被try关键字检查并保护的业务代码
	
except <异常的类型>:
    <代码块2> # 代码块1 出现错误后执行的代码块

try:
    <代码块>
except Exception as e:  # 单词首字母大写
    <异常代码块>

try:
    print('try start')
    res = 1/0
    print('try finish')
except ZeroDivisionError as e:
    print(e)
except Exception as e: #可以有多个except
    print(‘this is a public excpet , bug is: %s' % e)

try:
    print('try start')
    res = 1/0
    print('try finish')
except (ZeroDivisionError, Exception) as e:
    print(e)

# coding:utf-8

def upper(str_data):
    new_str = 'None'
    try:
        new_str = str_data.upper()
    except Exception as e:
        print('程序出错了:{}'.format(e))
    return new_str


result = upper(1)
print('result:', result)

def test():
    try:
        print('123')
        1 / 0
        print('hello')
    except ZeroDivisionError as e:
        print(e)


test()


def test1():
    try:
        print('hello')
        print(name)
    except (ZeroDivisionError, NameError) as e:
        print(e)
        print(type(e))
        print(dir(e))


test1()