1、未使用go channel
package main
import (
"fmt"
"time"
)
func printer(s string) {
for _, v := range s {
fmt.Println(string(v))
time.Sleep(time.Millisecond * 3000)
}
}
func person() {
printer("hello")
}
func person2() {
printer("world")
}
func main() {
go person()
go person2()
for {
}
}
d:\goprojects\src\day1\练习>go run main.go h w e o l r l l o d exit status 2
2、使用channel
package main
import (
"fmt"
"time"
)
var ch = make(chan int, 1)
func printer(s string) {
for _, v := range s {
fmt.Println(string(v))
time.Sleep(time.Millisecond * 3000)
}
}
func person() {
printer("hello")
ch <- 1
}
func person2() {
<-ch
printer("world")
}
func main() {
go person()
go person2()
for {
}
}
d:\goprojects\src\day1\练习>go run main.go h e l l o w o r l d