Tag：source file
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Time：2021-4-15
Learning docker from scratch Step 1: after the environment is installed, first change the yum source to alicloud version 1. Backup the current Yum source. If there is an accident, you can directly restore this version cd /etc/yum.repos.d/ cp /CentOS-Base.repo /CentOS-Base-repo.bak 2. Download WGet CentOS without WGet. Manual installation is required yum install wget -y […]
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Time：2021-4-14
To better organize classes, Java providesPackage mechanism。 This mechanism is designed toIt can prevent naming conflict, access control, search and locate classes, interfaces, enumerations and annotations。 1、 Function Organize similar or related classes or interfaces in the same packageTo facilitate the search and use of the class. Just like the folder, the package is also […]
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Time：2021-3-27
Presumably, my friends often need to transfer files between two Linux servers. The SCP command is used to transfer files between two Linux servers. Let me introduce some daily usage of SCP.Simple writing SCP [optional parameter] file_ source file_ target Just remember that the previous file is the source file and the next file is […]
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Time：2021-3-25
Android.mk Basic documents that can be produced LOCAL_PATH:P=$(call my-dir) //Return to the Android.mk Path to the directoryMust be placed on the first line to define the relative path of the current module include $(CLEAR_ Vars) / / clear variables / / clear current environment variables LOCAL_ Module: = Test / / the name of the […]
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Time：2021-3-19
preface Linux command is not terrible, as long as familiar with the daily operation command can, other unfamiliar commands, need to use when you can consult information, practice makes perfect. Common operating commands of Linux Basic format of command Command prompt [[email protected] ~]# []: This is the separator of prompt and has no special meaning. […]
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Time：2021-3-15
In recent years, we need to encapsulate the common logic into NPM package in order to achieve code reusability and reduce the corresponding maintenance cost. This article is mainly about how to use ES6 + syntax code to generate NPM package. If there are deficiencies and inappropriate points, you are welcome to point out. Environmental […]
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Time：2021-3-14
Hello everyone, I’m a ruffian Heng. I’m a serious technical ruffian. Today, ruffian Heng introduces to youMP3 player reference design based on i.mxrt1011。 i. Mxrt1011 is the entry-level model of NXP i.mxrt four digit series. Although it is an entry-level model, it is also a killer with 500MHz main frequency. In order to let you […]
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Time：2021-3-13
1. Check whether the compiler environment of C language is configured successfully Win + R inputcmd Open DOS window and input commandgcc -vTo see if there is content output If the following contents are output, the configuration is successful, and you can proceed to the next step If you enter the command, the DOS window […]
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Time：2021-3-6
usage method: $ cp –help Usage: CP [option]… Source file target file Or: CP [option]… Source file… Directory Copy the source file to the target file, or copy multiple source files to the target directory. The parameters that long options must use are also required for short options. -A is equivalent to – PDR -D […]
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Time：2021-1-28
To define a package, the package name is main, because main is the package name of the executable program. All source file headers must have a package declaration statement (package main), because go manages the namespace through the package name
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Time：2021-1-13
For more articles, please pay attention to the official account of “BLOG of the sea”. Question: The sum of Squares Theorem is also called Lagrange theoremEvery positive integer can be expressed as the sum of squares of up to four positive integers.If 0 is included, it can be expressed as the sum of the squares […]
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Time：2020-12-13
I wrote a simple shell script to quickly install JDK on CentOS 7 server. Other versions of the system have not been triedDon’t talk too much, just code itIt uses Huawei’s JDK image #!/usr/bin/env bash PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH # Color red=’\033[31m’ green=’\033[32m’ yellow=’\033[33m’ plain=’\033[0m’ get_char() { SAVEDSTTY=$(stty -g) stty -echo stty cbreak dd if=/dev/tty bs=1 […]
