How to implement Goroutine coroutine in Go?

Goroutine implemented in Go: syntax: go func() { ... }. Practical case: Create a goroutine to calculate the Fibonacci sequence and send the results through an unbuffered channel.

#How to implement Goroutine coroutine in Go?

Goroutine in Golang is a lightweight coroutine that can be used to execute tasks concurrently. Unlike threads, Goroutines are very lightweight and managed by the Go runtime, so there is no need to manually create or manage them.

Syntax

The syntax for creating a Goroutine is as follows:

go func() {
    // Goroutine 的代码
}()

Practical case

The following is one Practical case of using Goroutine to calculate Fibonacci sequence:

package main

func main() {
    c := make(chan int)

    go fibonacci(10, c)

    for i := range c {
        fmt.Println(i)
    }
}

func fibonacci(n int, c chan int) {
    x, y := 0, 1
    for i := 0; i < n; i++ {
        c <- x
        x, y = y, x+y
    }
    close(c)
}

Instructions

• make(chan int) Create an unbuffered Channel c.
• go fibonacci(10, c) Starts a Goroutine to calculate the Fibonacci sequence and send it to channel c.
• for i := range c Receives a value from channel c and prints to standard output.
• close(c) Close the channel after the Goroutine calculation is completed.

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