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package main import ( "fmt" "time" ) func numbers() { for i := 1; i <= 5; i++ { time.Sleep(250 * time.Millisecond) fmt.Printf("%d ", i) } } func alphabets() { for i := 'a'; i <= 'e'; i++ { time.Sleep(400 * time.Millisecond) fmt.Printf("%c ", i) } } func main() { go numbers() go alphabets() time.Sleep(3000 * time.Millisecond) fmt.Println("main terminated") }
运行结果 :
正在执行...