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1. notes * * 1.1 single line comment # The first python annotation 1.2 Multi-line Notes The first one python Notes' ' ** 2. Specify the spacer sep** When there is no sep, the default spacer is a space >>> print(1,2,3) 1 2 3 You can specify spacers when there is sep For example, sep=&qu ...

1. It is the simplest and easiest current limiting algorithm. The counter realizes current limiting by allowing only 10 requests per minute for the first request to enter at startTime, and only 10 requests within startTime + 60s. When there are more than ten requests in 60s, refuse, do not exceed, and reset time in 60s package com.aiyues ...

Preface For the application scenario of "nearby people" in the field of location-based services, many spatial indexes such as PG, MySQL and Mongo DB can be used to implement it. Redis, which combines its ordered queue zset and geohash coding, achieves the function of spatial search and has a very high operational efficiency. This pap ...

According to the requirement of the project, the data should be returned according to the background interface, and the form content should be added dynamically.   Description: This component is based on Ant Design of Vue   Six form controls are currently supported: Text Input, Text Area, Select Input, Select Multiple, Data Picker, and Data ...

How to use read in java: Abstract int read() reads the next byte of data from the input stream (less efficient) int read(byte[] b) reads a certain number of input streams and stores them in buffer array B. Int read(byte[] b, int off, int len) reads the most len data bytes in the input stream into the b ...

You've decided to carry out a survey in the theory of prime numbers. Let us remind you that a prime number is a positive integer that has exactly two distinct positive integer divisors. Consider positive integers a, a + 1, ..., b (a ≤ b). You want to find the minimum integer l (1 ≤ l ≤ b - a + 1) su ...

A brief description of the snowflake algorithm: The highest bit is the symbol bit, always 0, not available. 41-bit time series, accurate to milliseconds, 41-bit length can be used for 69 years. Time bits also play an important role in sorting by time. The 10-bit machine identifier and the 10-bit length support the deployment of 1024 nodes at mo ...

1. jsonPath's address on github is as follows: https://github.com/json-path/JsonPath 2. json-path Quick Start Operators in json-path 2. Functions available in json-path 3. Filter operators     3. maven dependence <dependency> <groupId>com.jayway.jsonpath</groupId> <artifactId>json-path</artifactId&gt ...

Subject requirements Given a data stream input of non-negative integers a1, a2, ..., an, ..., summarize the numbers seen so far as a list of disjoint intervals. For example, suppose the integers from the data stream are 1, 3, 7, 2, 6, ..., then the summary will be: [1, 1] [1, 1], [3, 3] [1, 1], [3, 3], [7, 7] [1, 3], [7, 7] [1, 3], [6, 7] ** ...

//Since webback is built on nide, any legal node code is supported when configuring files.// 1. Import Path Template const path =require('path'); // Import plug-ins that generate html pages in memory const htmlWebpackPlugin = require("html-webpack-plugin") // 2. Operating through modules in node To expo ...