mye= input("请输入一个数字")
try:
    n=0/mye         # 触发异常
except IOError:
    print("IOError")         # io错误从这个分支
except ValueError:
    print("ValueError")      # 值错误从这个分支
except Exception as e:
    print(e)
else:                        #没有异常时
    print("else")
finally:                     #无论是否有异常最终会走
    print("finally")

def elianxi():
    mye= input("请输入一个数字")
    try:
        n=10/mye         # 触发异常
        return n
    except Exception as e:
        print("错误信息",e)
        return "返回e"
    else:                        #没有异常时
        print("else")
    finally:                     #无论是否有异常最终会走
        print("打印finally")
        return "返回finally"

e=elianxi()
print(e)