Network File System BasicThe Network File System (NFS) is a client/server application that lets a computer user view and optionally store and update files on a remote computer as though they were on the user’s own comput 2020-09-11 Operating System
File systems Basic A filesystem is the methods and data structures that an operating system uses to keep track of files on a disk or partition; that is, the way the files are organized on the disk. File content 2020-09-10 Operating System
spaCy学习 基本概念 spaCy (/speɪˈsiː/) is an open-source software library for advanced natural language processing written in the programming languages Python and Cython. 学习资源: https://spacy.io/ https://course.spa 2020-09-10 Python NLP
Leetcode-滑动窗口 题目要求连续子数组 解题思路 根据要求，找到第一个满足条件的窗口 调整窗口(右移/左移)使其继续满足要求，并进行重复 得到最合适的窗口即为答案 Leetcode例题 2020-09-09 Algorithm Leetcode Python
Storage systems Storage DeviceHierarchy Characters Capacity(bytes) - How much data it can hold Cost($) - Price per byte of storage Bandwidth(bytes/sec) - Number of bytes that can be transferred per second; read and 2020-09-08 Operating System
JSON-review JSON概述JSON（JavaScript Object Notation)，由道格拉斯·克罗克福特构想和设计、轻量级的数据交换语言,该语言以易于让人阅读的文字为基础，用来传输由属性值或者序列性的值组成的数据对象。尽管JSON是JavaScript的一个子集，但JSON是独立于语言的文本格式。 Light-weight data exchange formatMuch simpler than 2020-09-07 Python File Format
Firebase rest & web api Firebase 概述（BaaS）Firebase谷歌的一款应用后台服务。借助Firebase，应用开发者们可以快速搭建应用后台。 产品 Firebase (realtime) database: Manage JSON documents + Real-time syncing data between users and devices Firebase (cloud) storage: St 2020-09-06 Commands Tools
DSCI551 outline DSCI551 - Foundations of Data ManagementFirebase rest & web apiJSON-reviewStorage systemsFile systems 2020-09-06 Course
Leetcode-剑指Offer 左旋转字符串12def reverseLeftWords(s,n): return s[n:] + s[:n] 求1+2+…+n123456res = 0def sumNums(n): global res n > 1 and sumNums(n-1) # n=1 终止递归的需求，可通过短路效应实现 res += n return res 数组中重复的数字 2020-09-05 Algorithm Leetcode Python