Channels can be buffered. Provide the buffer length as the second argument to make to initialize a buffered channel: ch := make(chan int, 100) Sends to a buffered channel block only when the buffer is full. Receives block when the buffer is empty. Mo…

有人把Go比作21世纪的C语言,第一是因为Go语言设计简单,第二,21世纪最重要的就是并行程序设计,而Go从语言层面就支持了并行. goroutine goroutine是Go并行设计的核心.goroutine说到底其实就是线程,但是它比线程更小,十几个goroutine可能体现在底层就是五六个线程,Go语言内部帮你实现了这些goroutine之间的内存共享.执行goroutine只需极少的栈内存(大概是4~5KB),当然会根据相应的数据伸缩.也正因为如此,可同时运行成千上万个并发任务.goro…

有人把Go比作21世纪的C语言,第一是因为Go语言设计简单,第二,21世纪最重要的就是并行程序设计,而Go从语言层面就支持了并行. goroutine goroutine是Go并行设计的核心.goroutine说到底其实就是线程,但是它比线程更小,十几个goroutine可能体现在底层就是五六个线程,Go语言内部帮你实现了这些goroutine之间的内存共享.执行goroutine只需极少的栈内存(大概是4~5KB),当然会根据相应的数据伸缩.也正因为如此,可同时运行成千上万个并发任务.goro…

原文链接:https://golangbot.com/buffered-channels-worker-pools/ buffered channels 带有缓冲区的channel 只有在缓冲区满之后 channel才会阻塞 WaitGroup 如果有多个 goroutine在后台执行 那么需要在主线程中 多次等待 可以有一个简单的方法 就是 通过WaitGroup 可以控制 Goroutines 直到它们都执行完成 例子 import ( "fmt" "sync"…

#method    - Methods        - Go does not have classes. However, you can define methods on types.        - func (f MyFloat) Abs() float64 {    - Interfaces        - type Abser interface { Abs() float64 }        - One of the most ubiquitous interfaces…

原文:https://www.goinggo.net/2014/02/the-nature-of-channels-in-go.html The Nature Of Channels In Go 这篇文章关于channel讲解得非常好,深度形象.深入浅出.尤其是这两幅图,太厉害了.非常清楚,一目了然. --------------------------------------------------------------------------------------------------…

原文:https://medium.com/rungo/anatomy-of-channels-in-go-concurrency-in-go-1ec336086adb -------------------------------- What are the channels? A channel is a communication object using which goroutines can communicate with each other. Technically, a ch…

Contents Tutorial Hello, World Command-Line Arguments Finding Duplicate Lines A Web Server Loose Ends Program Structure Names Declarations Variables Assignments Type Declarations Packages and Files Scope Basic Data Types Integers Floating-Point Numbe…

资料 1.How to Write Go Code https://golang.org/doc/code.html 2.A Tour of Go https://tour.golang.org/list 3.Effective Go https://golang.org/doc/effective_go.html 4.Visit the documentation page for a set of in-depth articles about the Go language and its…

Go项目收藏 电子书 1.Go Web 编程 2.Go入门指南(the-way-to-go_ZH_CN) 3.Go语言圣经(中文版) Go by Example 中文 一些Go英文电子书 High Performance Go Golang标准库 入门教程 [Go入门教程1]Go 安装,GOROOT,GOPATH,Go工作空间 [Go入门教程2]内置基础类型(Boolean.数值.字符串.错误类型),分组,iota枚举,array(数值),slice(切片),map(字典),make/new操作…