Programming VIP

Gopher to Rust hot eye grammar rankingAuthor: Zhongyi - sealos author, sealer initiatorTOP 10 often forget to write semicolonsfn add_with_extra(x: i32, y: i32) -> i32 { let x = x + 1; // sentence let y = y + 5; // sentence x + y // expression }When you first turn from golang, you must often forget to write semicolons. For Rust la ...

Docker: deploy Nginx reverse proxy Environmental preparation The following services are required DockerDocker compose (Docker Desktop under Windows / MacOS comes with it, which can be installed without additional installation)Node. JS (used to start an express back-end service. If there are other services such as java+tomcat and golang, ...

Original link: http://tecdat.cn/?p=3385Original source: Tuo end data tribal official accountRecently, I was asked to write a copulas survey on financial time series. Obtain the description of various models from the read data, including some graphics and statistical output.> oil = read.xlsx(temp，sheetName ="DATA"，dec ="，")Then we can draw ...

Method is not overloaded (instance method say_; function ()) In other languages, multiple methods with duplicate names can be defined as long as the method signature is unique. Method signature includes three parts: method name, parameter quantity and parameter type. In Python, the parameters of a method have no declared type (the type of the ...

https://blog.csdn.net/huangyu1985/article/details/103939462 1. Introduction The bottom layer of ByteBuffer is through byte Array is used to store data. The so-called direct buffering means that byte arrays are stored outside the heap and do not exist on the jvm heap, which is not constrained by jvm garbage collection. 2. Creation methods o ...

Title Link: https://www.nowcoder.com/study/live/716/5/17 Given a binary tree, return the sequence traversal result of the binary tree (traversing layer by layer from left to right) For example: The given binary tree is {3,9,20, #, #, 15,7}, The result of the binary tree sequence traversal is [ [3], [9,20], [15,7] ] Tips: 0 < = node numb ...

About the author: program ape stone (ID: tangleishu), now Alibaba technical expert, Tsinghua xueslag, former Dajiang back-end Leader. Share high-quality technical articles from different perspectives for the purpose of making people gain from each article. Welcome to pay attention, exchange and guidance!backgroundThese two days, the ranking res ...

Sliding windows are divided into two types: unfixed window size and fixed window size: (commonly used when looking for substrings that meet certain requirements) 1) Unfixed window size: the window size will change. When the current window does not meet the requirements, it will move backward as a whole. 2) Fixed window size: the window size i ...

Promise usage review First, let's review what Promise is. Promise is a solution for asynchronous programming, which is more reasonable and powerful than traditional solutions, callback functions and events. Promise is simply a container that holds the results of an event (usually an asynchronous operation) that will not end in the future. Sy ...

New solution of sequence query Topic background The previous question "sequence query" said: A=[A0,A1,A2 ···, An] is a sequence composed of n+1 integers in the range of [0,N], which satisfies 0 = A0 < A1 < A2 < ·· < An < n. Based on sequence a, for any integer x within the range ...