Study notes (3): zero-based mastering Python entry to actual combat-where does a dot go (2) - Code World

Study notes (3): zero-based mastering Python entry to actual combat-where does a dot go (2)

Others 2020-10-26 00:49:57 views: null

Learn now: https://edu.csdn.net/course/play/26676/338772?utm_source=blogtoedu

The built-in function that can be rounded in python: round (the number to be rounded, keep the number of decimal places);

But this does not completely solve the problem of hexadecimal conversion (it can solve 0.1+0.2; but it cannot solve the rounding of 1.2345), and there will still be incorrect results in some problems. But a tool that can solve this problem will be introduced in later chapters.

The representation of scientific notation in python:

Use e to represent 10; then e2 is the power of 10. For example, 1.2e2 is 120, where both uppercase E and lowercase e can be expressed in this way.

The id() function can view the address of the object on this computer; and the help function can call up the help description file corresponding to the object. This object can be a value or a function.

Guess you like

Origin blog.csdn.net/Bernze/article/details/109189196

Study notes (3): zero-based mastering Python entry to actual combat-where does a dot go (2)

Study notes (2): Zero-base mastering Python entry to actual combat-where does a dot go (1)

Study notes (3): zero-base mastering Python entry to actual combat-control attribute access

Study notes (2): zero-base mastering Python entry to actual combat-method polymorphism, refusal to isolate

Study notes (6): zero-base mastering Python entry to actual combat-explain the string in simple language (3)

Study notes (25): zero-base mastering Python entry to actual combat-class definition object, self points to itself (3)

Study notes (18): zero-base mastering Python entry to actual combat-loop sentences, repeating the cycle (3)

Study notes (5): zero-base mastering Python entry to actual combat-building blocks yourself: writing and building modules (2)...

Study notes (17): zero-base mastering Python entry to actual combat-loop sentences, repeating the cycle (2)

Study notes (5): zero-base mastering Python entry to actual combat-explain the string in simple language (2)

Study notes (25): zero-base mastering Python entry to actual combat-class definition object, self points to itself (2)

Study notes (14): zero-base mastering Python entry to actual combat-Python operators and simple sentences

Study notes (4): Zero-base mastering Python entry to actual combat-deep understanding of iterators and generators

Study notes (22): zero-base mastering Python entry to actual combat-special functions, treated differently

Study notes (15): zero-base mastering Python entry to actual combat-judgment sentences, acting by chance

Study notes (20): zero-base mastering Python entry to actual combat-layers of nesting, successively different

Study notes (7): Zero-base mastering Python entry to actual combat-which one should I use for lists and ancestors? (One)

Study notes (23): zero-base mastering Python entry to actual combat-class definition object, self points to itself (1)

Study notes (19): zero-base mastering Python entry to actual combat-repeated use, twice the result with half the effort

Study notes (21): zero-base mastering Python entry to actual combat-"new people and old people", live in harmony

Study notes (13): zero-base mastering Python entry to actual combat-a collection of built-in object cases

Study notes (8): Zero-foundation mastering Python entry to actual combat-which one should you use for lists and ancestors? (two)

Study notes (9): Zero-base mastering Python entry to actual combat-which one should I use for lists and ancestors? (three)

Study notes (15): zero-base mastering Python entry to actual combat-loop sentences, cycle and start (1)

Study Notes (01): Getting Started with Python zero-based easy: once learned from entry to actual combat - built-in object type -ed

Introduction to React from zero-based entry to actual project combat

Go study notes - timer, dot

Zero-based entry to learn Python (3) Variables and strings

Based on analysis of actual combat study notes a large python of data - opening

Based on analysis of actual combat study notes -Anaconda of large data python

Recommended

The number of MaxKB GitHub Stars, an open source knowledge base question and answer system based on large language models, exceeded 5,000!

Ranking

Getting the basic concepts of ROS + catkin Profile

Spring Learning (2) --- Assembling Beans in the IoC Container

js to get the src attribute of the image regularly

STM32 is based on CubeIDE and HAL library basics entry study notes: Bluetooth WIFI STM32 connects to Alibaba Cloud

Short video learning - 3, pandas simple use of pivot_table

Print directory of project configuration log, output log

Understand the difference between vi and vim in Linux in 3 minutes

1 + x certificate Web front-end development HTML5 special exercises

mangodb save and insert the difference

7-1 Family tree processing (50 points) (binary tree solution)

Daily

More

2024-05-13(8)

2024-05-12(28)

2024-05-11(32)

2024-05-10(34)

2024-05-09(32)

2024-05-08(18)

2024-05-07(34)

2024-05-06(6)

2024-05-05(0)

2024-05-04(18)