WebFeb 19, 2024 · WaitGroup 是什么以及它能为我们解决什么问题？ WaitGroup在go语言中，用于线程同步，单从字面意思理解，wait等待的意思，group组、团队的意思，WaitGroup就是指等待一组，等待一个系列执行完成后才会继续向下执行。. 正常情况下，goroutine的结束过程是不可控制的，我们可以保证的只有main goroutine的终止。 WebGo by Example. : WaitGroups. To wait for multiple goroutines to finish, we can use a wait group. This is the function we’ll run in every goroutine. Sleep to simulate an expensive task. This WaitGroup is used to wait for all the goroutines launched here to finish. Note: if a WaitGroup is explicitly passed into functions, it should be done by ...

Go之WaitGroup底层实现 - 掘金

WebApr 4, 2024 · Overview. Package sync provides basic synchronization primitives such as mutual exclusion locks. Other than the Once and WaitGroup types, most are intended for use by low-level library routines. Higher-level synchronization is better done via channels and communication. Values containing the types defined in this package should not be … WebWaitGroup用于等待一组线程的结束，父线程调用Add来增加等待的线程数，被等待的线程在结束后调用Done来将等待线程数减1，父线程通过调用Wait阻塞等待所有结束（计数器 … it\u0027s just the chemicals

Go语言WaitGroup - 腾讯云开发者社区-腾讯云

WebApr 18, 2024 · 这需要借助sync包的WaitGroup来实现。 WatiGroup是sync包中的一个struct类型，用来收集需要等待执行完成的goroutine（协程）。下面是它的定义： type … WebDec 5, 2024 · Go WaitGroup Tutorial. Elliot Forbes ⏰ 6 Minutes 📅 Dec 5, 2024. If you are just starting your journey about learning Go and how to implement highly concurrent, high-performance applications, then an understanding of WaitGroups is vital. In this tutorial, we are going to be covering the following: What WaitGroups are and when we should use ... WebApr 29, 2024 · 1、waitgroup是什么？有什么作用？ 用来阻塞主协程，可以等待所有协程执行完。 2、使用方法 总共三个方法Add(n)【n为总共要等待的协程数】，Done【在协程 … it\u0027s just the gas lyrics