A simple example of using Chan in Go

This is a creation in Article, where the information may have evolved or changed.

Development environment: Windows7 64-bit, editor: Sublime Text3

Summary: Go can create a buffered Chan (for example: C1:=make (Chan int,4) is a buffer size of 4 chan), you can also create a non-buffered Chan (such as: C2:=make (chan int) is not buffered Chan).

The code is as follows, with comments in the code:

Package Main


Import (
"FMT"
)


Func Main () {
c: = make (chan int, 2)//Create buffered Chanel, buffer size is 2


This invokes the function, then F1 and F2 are executed concurrently.
Go F1 (c)//pass parameter C to F1 ()
Go F2 (c)//pass parameter C to F2 ()


C1: = <-c
C2: = <-c the//main function exits main () only if it receives two values from C, otherwise the main () will block this until there is data in C that can be received
Fmt. Printf ("c1:%d c2:%d", C1, C2)
}


Func F1 (c Chan int) {//Chan int} indicates that the type of the parameter is a Chanel that stores the int type
C <-1//pass 1 to this Chanel, then main () will accept 1
}


Func F2 (c chan int) {//Chan int} indicates that the type of the parameter is a Chanel that stores the int type
C <-2//2 is passed into this Chanel, then main () will receive 2
}

The result of the run (the result shows that the value of C1 is 2 instead of the 1,C2 value is 1 instead of 2):