Golang中select语句的执行流程是怎样的? select是go语言中常用的一个关键字,其用法也一直被用作面试题来考核应聘者。今天,结合代码来分析下select的主要用法。 首先,我们来从官方文档看一下有关select的描述: A "select" statement chooses which of a set of possible send or receive operations will proceed. ...
case c <- 0: // note: no statement, no fallthrough, no folding of cases case c <- 1: } } select {} // block forever 参考链接 1.RUNOOB.COM 之 Go 语言 select 语句 后记 本文得分:50。 虽然学习了 信道和协程 相关内容,可是,自己对如何使用它们还是处于 模糊不清 状态的。该怎么进阶呢?...
接下来咱们就来拆分 selecgo 函数中的逻辑,先看一开始: // src/runtime/select.go // selectgo implements the select statement. // // cas0 points to an array of type [ncases]scase, and order0 points to // an array of type [2*ncases]uint16 where ncases must be <= 65536. // Both...
golangselectgo 篇一 In Go language, the "select" statement is a powerful tool for handling multiple channels. It allows a program to wait on multiple channel operations simultaneously. Let me tell you how it works! 😃 Imagine you're building a server that needs to handle multiple incoming...
接下来咱们就来拆分 selecgo 函数中的逻辑,先看一开始: // src/runtime/select.go// selectgo implements the select statement./// cas0 points to an array of type [ncases]scase, and order0 points to// an array of type [2*ncases]uint16 where ncases must be <= 65536.// Both reside...
golang select语句执行 官方定义 "select" statement chooses which of a set of possible send or receive operations will proceed. It looks similar to a "switch" statement but with the cases all referring to communication operations. 一个select语句用来选择哪个case中的发送或接收操作可以被立即执行。它...
// selectgo implements the select statement./// cas0 points to an array of type [ncases]scase, and order0 points to// an array of type [2*ncases]uint16 where ncases must be <= 65536.// Both reside on the goroutine's stack (regardless of any escaping in// selectgo)./// For...
// selectgo implements the select statement. // // cas0 points to an array of type [ncases]scase, and order0 points to // an array of type [2*ncases]uint16 where ncases must be <= 65536. // Both reside on the goroutine's stack (regardless of any escaping in ...
// selectgo implements the select statement. // // cas0 points to an array of type [ncases]scase, and order0 points to // an array of type [2*ncases]uint16 where ncases must be <= 65536. // Both reside on the goroutine's stack (regardless of any escaping in // selectgo)....
statement(s)default: statement(s) } AI代码助手复制代码 以下描述 select 语句的语法 每个case 都必须是一个通信 所有channel 表达式都会被求值 所有被发送的表达式都会被求值 如果任意某个通信可以执行,它就会执行;其他就会被忽略 如果有多个 case 都可以运行,select 会随机公平的选出一个执行。其他不会执行。