八月 2017 - Tech Note

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MongoDB

MongoDB 3.4 Role-Based Access Control（MongoDB访问权限控制）

本篇适用情形： MongoDB 启用权限控制 MongoDB 用户管理了解MongoDB 内置角色正文：【1】内建角色介绍 Built-In Roles Database User Roles (exist in each database.) read readWri...

iX. 12 8月, 2017

Python

Python 3 学习笔记 - 时间相关

时间的表示 1、时间不在Python Build-in类型，Python 提供 datetime、time 和 calendar 等模块用于时间类型的处理。 2、时间戳（timestamp)，表示自从1970年1月1日（00:00:00 GMT）到现在经历的秒数。 3、datet...

iX. 10 8月, 2017

Python

Python 3 学习笔记 - 数据类型

Python变量 1、Python是动态语言，不需要声明变量，但变量在使用前必须赋值，变量赋值以后该变量才会被创建。变量的类型由所赋予的值的类型来决定通。 2、查询变量所指向的对象数据类型： type() //返回数据类型，如class 'int' isins...

iX. 8 8月, 2017

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