diff --git a/core.go b/core.go
index f56a22b..e36e085 100644
--- a/core.go
+++ b/core.go
@@ -165,6 +165,45 @@ func isInExpandTags(ta TimeArrow, expandTag string) bool {
 	return false
 }
 
+//CreateDayOfWeekTypePlan 创建一个每周计划
+func CreateDayOfWeekTypePlan(group string, dayOfWeek []int, timesOnDay []string, expandValue interface{}, expandTags []string, weights float64) TimeArrow {
+	return TimeArrow{
+		Type:        TimeArrowTypeDayOfWeek,
+		Group:       group,
+		DayOfWeek:   dayOfWeek,
+		TimesOnDay:  timesOnDay,
+		ExpandValue: expandValue,
+		ExpandTags:  expandTags,
+		Weights:     weights,
+	}
+}
+
+//CreateDayOfMonthTypePlan 创建一个每月计划
+func CreateDayOfMonthTypePlan(group string, dayOfMonth []int, timesOnDay []string, expandValue interface{}, expandTags []string, weights float64) TimeArrow {
+	return TimeArrow{
+		Type:        TimeArrowTypeDayOfMonth,
+		Group:       group,
+		DayOfMonth:  dayOfMonth,
+		TimesOnDay:  timesOnDay,
+		ExpandValue: expandValue,
+		ExpandTags:  expandTags,
+		Weights:     weights,
+	}
+}
+
+//CreateDateSliceTypePlan 创建一个时间段计划
+func CreateDateSliceTypePlan(group string, dateSlice []DateSlice, timesOnDay []string, expandValue interface{}, expandTags []string, weights float64) TimeArrow {
+	return TimeArrow{
+		Type:        TimeArrowTypeDateSlice,
+		Group:       group,
+		DateSlice:   dateSlice,
+		TimesOnDay:  timesOnDay,
+		ExpandValue: expandValue,
+		ExpandTags:  expandTags,
+		Weights:     weights,
+	}
+}
+
 func GetHitTimeArrow(t time.Time, group string, expandTags ...string) (*TimeArrow, error) {
 	ta, err := GetData(group)
 	if err != nil {