目录1.参数a2.参数size3.参数replace4.参数p处理数据时我们经常需要从数组中随机抽取元素，这时python候我们可以考虑使用np.random.choice()函数
How would one go about authenticating against a single db using开发者_如何学Python Python and openfire?Is there a simple module that will do this?Openfire uses a SQL database. So talking to the databa
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