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|
package main
import (
"context"
)
func main() {
ctx, _ := context.WithCancel(context.Background())
ch := make(chan string, 20)
defer close(ch)
go func(ctx context.Context, ch <-chan string) {
for {
select {
case <-ctx.Done():
return
case tmp := <-ch:
_ = tmp
}
}
}(ctx, ch)
for _, i := range "abcdef" {
for _, j := range "0123456789" {
// i, j := "a", "0"
for _, k := range "ABCDEF" {
select {
case <-ctx.Done():
return
default:
tmp := string(i) + string(j) + string(k)
ch <- tmp
}
}
}
}
return
}
// Output:
//
|
