自定义在myexception模块中的异常类MyException

class MyException(Exception):
def init(self,val1,val2):
self.val1=val1
self.val2=val2

main.py

import myexception

class Test(object):
def init(self,switch):
self.switch=switch #开关

def calc(self,a,b):
    try:
        #return a/b
        if b<3:
            raise myexception.MyException(a,b)
    except NameError:
        print("NameError 发生了 ...")
    except myexception.MyException as me:
        print("MyException 发生了 ...")
    except Exception as e:
        if self.switch:
            print("异常捕获开启，异常信息如下：")
            print(e)
        else:
            print("异常捕获关闭，抛出异常 ...")
            raise
    else:
        print("没有异常才执行的语句 ...")
    print("除非有异常且异常交由python处理，否则都会打印的语句 ...")

test=Test(1)

test=Test(0)

test.calc(5,0)