请问大家一下，

如果想删除字典元素但不返回值要用什么？dict.pop(k,v)总是要返回值，

再有dict.pop(k,v)中v的类型可以是布尔型嘛？

Help on built-in function pop:

pop(...)

    D.pop(k[,d]) -> v, remove specified key and return the corresponding value.

    If key is not found, d is returned if given, otherwise KeyError is raised

1. Use del instead:

del dict_1[k]

2. Yes, you can use v as a bool

>>> a = {'x':'y', 'z':'c'}

>>> a.pop('N', True)

True