1. Programming language History:
1.1 Machine language
Only binary code can be recognized inside the computer, the instructions described in binary code 0 and 1 are called machine instructions, and the computer language of the set of all machine instructions is called machine language. The development efficiency of the language is very low and the efficiency is high.
1.2 Assembly language
The binary instruction of the machine language becomes the English word, slightly improves the readability and the development efficiency, after the programmer finishes writing the program through the assembler (like the high-level language compiler) transforms the assembly code into the machine language and then hands over to the CPU to run.
1.3 Advanced languages
Compiler: Compared to assembly language, code readability, development efficiency has improved, the programmer after writing the program through the compiler (such as the C language of GCC) to the machine language and then to the CPU to run. The compiled machine language is highly efficient, but if you need to make changes to the program, you need to change the source code and recompile, the time wasted, low timeliness, and poor cross-platform.
Explanatory: An interpreted language does not require a compiler to compile code, but instead uses an interpreter (or virtual machine) to translate into machine language at run time, once for each execution. Inefficient operation, dependent on the interpreter. The advantage is that because of the use of interpreters, the cross-platform is good, and the explanatory language can dynamically adjust and modify the application so that the development efficiency is high.
2.Python Introduction
2.1python Application Areas
AI, cloud computing, financial Analysis, web development, crawler, automated operations, scientific computing, game development
2.2python Interpreter Type
CPython, IPython, PyPy, Jython
1. Programming language history and Python introduction
