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Day 27 IPC interprocess communication IPC definition Exchange of data between one process and another, either within the same computer or over a netwo 阅读全文
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Day 26 Process State Created Running Terminated Blocked Waiting/Ready Zombie process A zombie process is a process whose execution is completed but it 阅读全文
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Day 25 Concurrent Programming in Python What is concurrency并发? Concurrency is working on multiple things at the same time. In Python, this can be done 阅读全文
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Day 24 Network Programming 一 TCP sockets As you’ll see shortly, we’ll create a socket object using socket.socket() and specify the socket type as sock 阅读全文
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Day 22 23 Network Programming 一 OSI model The Open Systems Interconnection model (OSI model) is a conceptual model that characterises and standardises 阅读全文
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一 polymorphism /ˌpɒlɪˈmɔːfɪz(ə)m/ 多态 Polymorphism is taken from the Greek words Poly (many) and morphism (forms). It means that the same function name 阅读全文
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一 Inheritance继承 Inheritance in Python Inheritance is a powerful feature in object oriented programming. It refers to defining a new class with little 阅读全文
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一 everything in python is an object In object-oriented programming languages like Python, an object is an entity that contains data along with associa 阅读全文
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Day 18 OOP 面向对象编程 一 what is OOP? Python is a multi-paradigm/ˈpærədaɪm/ 范例programming language. It supports different programming approaches. One of th 阅读全文
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Day 17 Frequently-used modules 一 hashlib module Python hashlib hashing function takes variable length of bytes and converts it into a fixed length seq 阅读全文