Python

Python Preliminary study ：turtle（ sea turtle ） Realize animation

utilize Python Of turtle Library to achieve an animation Turtle The library is Python Built in graphical module , Is the function library for draw...
2019-03-28 21:35 views 26

python Basic exercises （ One ）

Python Basic exercises ( One ) Give me a radius , Finding the area and perimeter of a circle . PI is 3.14# Give me a radius , Finding the area and...
2019-03-28 15:08 views 21

Python class （ One ）

The explanation is as follows ： No, I like to show off my English , This is just a way to show you the authority of information . Because after al...
2019-03-25 16:03 views 13

Pymongo index Summary of index related operations

Just to sum up pymongo China and index Operation related functions ,. You can refer to the code >&a...
2019-02-21 15:20 views 40

Python exception handling - Skip exception to continue execution

Python exception handling - Skip exception to continue execution python General use try…except… Handling exceptions try: # Code that ...
2019-02-19 15:01 views 123

Python numpy Medium nan and inf,nan Replace with the corresponding mean value

nan：not a numberinf：infinity; Positive infinity numpy Medium nan and inf All of them float type  t!=t return bool An array of types ( matrix )np.c...
2019-02-19 11:49 views 148

python Common built-in functions

Built in function 1 , Mathematics related abs(a) : Get the absolute value .abs(-1) max(list) : seek list Maximum .max([1,2,3])min(list) : seek...
2019-02-17 23:35 views 39

python common problem ( Interview related )

Python What is it? ? Brief and explain the advantages and disadvantages ?Python It is an object-oriented interpretive computer programming language...
2019-02-16 21:03 views 24

python interview --redis High concurrency processing mode

redis The high concurrency processing method of redis There is no concurrency problem , Because it's a single process , Any number of commands are ...
2019-02-13 17:36 views 58

pandas Reading and writing xls,xlsx

import pandas as pd import pandas as pdwdfw=pdw.DataFrame({" time ":[" time "]," place ":[" place "],"...
2019-02-07 22:37 views 42
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