go os/exec 弄了一上午被坑

switch runtime.GOOS {
case "windows":
   hms := t.Format("15:04:05")
   _ = exec.Command("cmd", "/C", "time", hms).Run()
   date := t.Format("2006-01-02")
   _ = exec.Command("cmd", "/C", "date", date).Run()
default:
   date := t.Format("2006-01-02 01:01:01")
   _ = exec.Command("bash", "-c", "date -s " + date).Run()
}

请注意大小写 "cmd"， ”/C“ cmd小写, /C大写

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