Golang Channels (channel)

This is a created article in which the information may have evolved or changed. # # channels (Channel) # # # # # # # # # # # # # Basic Concept 1. What is the channel simply means that the channel is goroutine communication mechanism * *. 2. How to create a channel using the built-in make function to create a "Goch: =" Chan int "//ch type is ' chan int ', like map, the channel is a * * reference to the data structure created using make. When an assignment or argument is passed to a function, the reference is copied. # # # The main operation Channel has two main operations: Send and receive, both collectively referred to as communication. There is a third operation, close which can trigger a one-way channel type. "' Gochan_read: = <-chan int//One-way read chan_write: = chan<-int//One-way write ' # # # # # # Basic usage Give an example of the use of the channel: ' Goselect {case & lt;-Chan1://If Chan1 successfully read the data case chan2<-1://If the data is successfully written to the CHAN2 default:///"" "If you need to prevent timeouts, add: time. After () ' go//prevents read timeout for select {case <-time. After (time. SECOND*2): println ("read Channel timeout") Case I: = <-chan_read:println (i)} "# # # # # # # # # # # # applications can do time control by channel The code is completed in sequence to execute. B () can be performed after reading to Chan1. A and B may be physically physical in different functions. "' Gochan1: = make (chan int) go A () <-chan1go B ()" 416 reads