示例代码请访问：github.com/wenjianzhan…
func runTask(id int) string {
time.Sleep(10 * time.Millisecond)
return fmt.Sprintf("The result is from %d\n", id)
}
func AllResponse() string {
numOfRunner := 10
ch := make(chan string, numOfRunner)
for i := 0; i < numOfRunner; i++ {
go func(i int) {
ret := runTask(i)
ch <- ret
}(i)
}
finalRet := ""
for j := 0; j < numOfRunner; j++ {
finalRet += <-ch + ""
}
return finalRet
}
func TestFristResponse(t *testing.T) {
t.Log("Before:", runtime.NumGoroutine())
t.Log(AllResponse())
time.Sleep(time.Second * 1)
t.Log("After:", runtime.NumGoroutine())
}
输出
=== RUN TestFristResponse
--- PASS: TestFristResponse (1.01s)
untill_all_test.go:32: Before: 2
untill_all_test.go:33: The result is from 0
The result is from 1
The result is from 9
The result is from 6
The result is from 7
The result is from 8
The result is from 4
The result is from 2
The result is from 5
The result is from 3
untill_all_test.go:35: After: 2
PASS
Process finished with exit code 0
全部任务都执行完成
示例代码请访问：github.com/wenjianzhan…
