common coding languages

under the source directory and generates and runs the executable file for the test. The output information is similarok archive/tar 0.011sFAIL archive/zip 0.022sok compress/gzip 0.033s...By default, no parameters are required, and it automatically tests all the test files under your source package, but you can also take the parameters, for more information, please refer to go help TestflagGo docThe Go Doc command is actually a powerful documentation tool.How do I view the documentation

1.C languageMulti-line comments. Format: Begins with a single slash and asterisk (/*), ending with an asterisk and a single slash (*/). Example:/* Comment content */2.c++(1) Single-line comment. Format: Starts with a double slash to the end of the line. Example://comment Content(2) Multi-line comment. Format:/* Comment content */3.HTMLMulti-line comments. Format:4.CSSMulti-line comments. Format:/* Comment content */5.XMLMulti-line comments. Format:6. Assembly languageSingle-line comment. Format:

' # # ' Some of the application exceptions1. Merging anonymous variable names#define ___ANONYMOUS1 (Type, var, line) type var# #line#define __ANONYMOUS0 (type, line) ___anonymous1 (type, _anonymous, line)#define ANONYMOUS (Type) __anonymous0 (type, __line__)Example: ANONYMOUS (static int);That is: static int _anonymous70; 70 indicates the line number of the row;First layer: ANONYMOUS (static int); --__ANONYMOUS0 (static int, __line__);Second layer:--___ANONYMOUS1 (static int, _anonymous, 70);Th

Npm:node Package Manager, node. JS SuiteManagement tools like:Pear is a PHP suite management tool (can be used to install PHP modules)PPM is a Perl suite management tool (can be used to install the Pear module)Pip is a Python Suite management tool (can be used to install Python modules)Perl-like ppm or PHP pear after installing NPM, use the NPM install module_name command to install the new kitNPM allows node. JS developers to leverage and expand the online Suite libraryInstallation NPM:node.js

1. Download http://www.iterm2.com/2, Oh-my-zshCurl-l https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh | ShOfficial website: https://github.com/robbyrussell/oh-my-zsh3, Sfp13-vim installation SH spf13-vim.sh 4, after the installation is reported that the VIM version is too low, the lack of LUA, using the following methods to upgrade.Use Homebrew artifact Ah, teenager!Homebrew-the missing Package manager for OS XWhen the installation is complete, op

, Enum_op_time) Endl;}Object-c: Because there is Xcode, the second-largest editor of the Earth (vs first), writing code is still cool. Unlike C + +, where the enum ENUM_OP op is defined for the parameters in the enumeration, it is important that generics are not fully supported. This is a gap.////main.m//Hiworld////Created by Linson on 2018/8/19.//Copyright 2018 Linson. All rights reserved.//#importenumenum_op{Enum_op_add, Enum_op_minus, Enum_op_time, enum_op_divide};intNumbercaculate (intAintBe

C + +: Do not write C + + for some time. Forget it again. and other languages are not written for years. A few hours in retrospect. or C + + is too difficult. Various usages. I didn't learn it when I was studying.When writing code, always recall, such as this parameter, whether to use a constant reference. How is the VECOTR implemented? How the string is implemented. String[] How the stack is put.As long as the heap is involved. Basically, you don't h

Common coding problems in PHP The problem of Chinese coding in PHP programming has plagued a lot of people, the cause of this problem is actually very simple, each country (or region) has stipulated the computer information exchange with the character encoding set, such as the United States extended ASCII code, China's gb2312-80, Japan's JIS and so on. As the

Tags: Oracle SQL DDL DML DCLAs we all know, SQL (Structure Query Language) is the core language of the database, the recent period of time to learn the database, some of the basic concept is a bit ambiguous, today simply put these common SQL concepts simple record to make a distinction.Classification: DDL: Data Definition language (CREATE, DROP, ALTER) DML: Data Manipulation language (INSERT, DELETE, UPDATE) DCL: Data Control Language

characteristics of HDB3 code(1) The baseband signal determined by HDB3 code has no DC component, and only a very small low frequency component;(2) The number of 0 strings in HDB3 is up to 3, so it is easy to extract timing signals.(3) Coding rules are complex, but decoding is simpler.Miller CodeMiller code, also known as the delay modulation code, it can be regarded as a two-phase code deformation.First, the codi