diff --git a/crontab.go b/crontab.go
index 1fe63c6..5150c9d 100644
--- a/crontab.go
+++ b/crontab.go
@@ -146,7 +146,7 @@ func (cron *Crontab) FromString(crontab string) error {
 		var intervalList []interface{}
 		intervalList = parseIntervalString(matches[0])
 		cron.interval.Append(intervalList...)
-		cron.TimeUp()
+		cron.NextTime()
 	case 5:
 		cron.min = createTimePointer(matches[0], 0, 59, true)
 		cron.hour = createTimePointer(matches[1], 0, 23, true)
@@ -155,7 +155,7 @@ func (cron *Crontab) FromString(crontab string) error {
 		cron.week = createTimePointer(matches[4], 0, 6, true)
 
 		cron.createYearPlan()
-		cron.TimeUp()
+		cron.NextTime()
 	default:
 		return errors.New("mathches len != want, check crontab string")
 	}
diff --git a/crontab_test.go b/crontab_test.go
index 190d1d7..97f9586 100644
--- a/crontab_test.go
+++ b/crontab_test.go
@@ -66,6 +66,10 @@ func isInRangeTime(sec, t float64) error {
 	return fmt.Errorf("计算错误 范围 %f-%f interval time is %f", t-0.05, t+0.05, sec)
 }
 
+func TestParseIntervalOnline1(t *testing.T) {
+
+}
+
 func TestParseIntervalPlus(t *testing.T) {
 	// crontab := "0-5/2,7-30/3,30,35,40-^1 * * * *" //(秒) 分 时 号(每月的多少号, 要注意月可可能性)  星期几(每个星期的) /每 ,列表 -范围
 	// crondata := NewCrontab("*22 * * * *")