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golang
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| package main | |
| import "fmt" | |
| func main() { | |
| ch := make(chan int) | |
| go fibs(ch) | |
| for i := 0; i < 20; i++ { | |
| fmt.Println(<-ch) | |
| } | |
| ch <- 0 | |
| } | |
| func fibs(ch chan int) { | |
| i, j := 0, 1 | |
| for { | |
| select { | |
| case ch <- j: | |
| i, j = j, i+j | |
| case <- ch : | |
| return | |
| } | |
| } | |
| } |
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| c := make(chan os.Signal, 1) | |
| signal.Notify(c, os.Interrupt) | |
| go func() { | |
| <-c | |
| log.Print("deleting database db") | |
| os.RemoveAll("db") | |
| defer os.RemoveAll("db") | |
| os.Exit(1) | |
| }() |
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