有没有一种方法可以将for循环作为go例程运行而无需将其放在单独的func中

Question

Let's say I want to set a for loop running but don't want to block the execution, obviously I can put the for loop in a function f and call go f and continue with my life,
but I was curious if there is a way to call go for directly, something like:

fmt.Println("We are doing something")
//line below is my question
go for i := 1; i < 10; i ++ {
    fmt.Println("stuff running in background")
} 
// life goes on
fmt.Println("c'est la vie")

Answer 1

If you want to run each loop in the background, nest the goroutine in the loop and use the sync.WaitGroup structure.

import "sync"

fmt.Println("We are doing something")

//line below is my question
wg := sync.WaitGroup{}

// Ensure all routines finish before returning
defer wg.Wait()

for i := 1; i < 10; i ++ {
    wg.Add(1)
    go func() {
        defer wg.Done()
        fmt.Println("stuff running in background")
    }()
}

// life goes on
fmt.Println("c'est la vie")