diff --git a/README.md b/README.md
index 9ca8383..9efb945 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ Zentao API client enabling Go programs to interact with Zentao in a simple and u
   - [x] 创建产品
 - [x] 产品计划(ProductsPlans)
   - [x] 创建计划
+  - [x] 创建子计划
   - [x] 获取产品计划列表
   - [x] 获取计划详情
   - [x] 修改计划
@@ -46,6 +47,7 @@ Zentao API client enabling Go programs to interact with Zentao in a simple and u
   - [x] 产品计划取消关联需求
   - [x] 产品计划关联Bug
   - [x] 产品计划取消关联Bug
+  - [ ] 操作计划(开启、关闭、完成)
 - [x] 发布
   - [x] 获取项目发布列表
   - [x] 获取产品发布列表
diff --git a/example/productsplans/main.go b/example/productsplans/main.go
index bec604b..c24f735 100644
--- a/example/productsplans/main.go
+++ b/example/productsplans/main.go
@@ -18,6 +18,7 @@ package main
 
 import (
 	"log"
+	"time"
 
 	"github.com/easysoft/go-zentao/v20/zentao"
 
@@ -34,22 +35,71 @@ func main() {
 		zentao.WithoutProxy(),
 	)
 	if err != nil {
-		log.Fatal(err)
+		panic(err)
 	}
-	pds, _, err := zt.Products.List()
+	pds, _, err := zt.ProductPlans.List(1)
 	if err != nil {
-		log.Fatal(err)
+		panic(err)
 	}
-	log.Printf("Products count: %v", len(pds.Products))
-	for _, pd := range pds.Products {
-		log.Printf("products id: %v", pd.ID)
-		pdps, _, err := zt.ProductPlans.List(pd.ID)
-		if err != nil {
-			panic(err)
-		}
-		for _, pdp := range pdps.Plans {
-			log.Printf("products plans id: %v", pdp.ID)
-			spew.Dump(pdp)
-		}
+	log.Printf("product 1 plan count: %v", len(pds.Plans))
+	p1, _, err := zt.ProductPlans.Create(1, zentao.ProductPlanMeta{
+		Title: "gosdk-" + time.Now().String(),
+	})
+	if err != nil {
+		panic(err)
+	}
+	log.Printf("product 1 create productplan id: %v", p1.ID)
+	p2, _, err := zt.ProductPlans.GetByID(p1.ID)
+	if err != nil {
+		panic(err)
+	}
+	log.Printf("product 1 get productplan id: %v", p2.ID)
+	spew.Dump(p2)
+	p3, _, err := zt.ProductPlans.UpdateByID(p2.ID, zentao.ProductPlanMeta{
+		Title: "gosdk-" + time.Now().String(),
+	})
+	if err != nil {
+		panic(err)
+	}
+	log.Printf("product 1 update productplan id: %v", p3.ID)
+	spew.Dump(p3)
+	p4, _, err := zt.ProductPlans.LinkStories(p3.ID, zentao.PlansStoriesIDs{
+		Stories: []int{1, 2, 3},
+	})
+	if err != nil {
+		panic(err)
+	}
+	log.Printf("product 1 link stories to productplan, stories: %v", len(p4.Stories))
+	p5, _, err := zt.ProductPlans.UnLinkStories(p3.ID, zentao.PlansStoriesIDs{
+		Stories: []int{1, 2},
+	})
+	if err != nil {
+		panic(err)
+	}
+	log.Printf("product 1 unlink stories to productplan, exist stories: %v", len(p5.Stories))
+	p6, _, err := zt.ProductPlans.LinkBugs(p3.ID, zentao.PlansBugIDs{
+		Bugs: []int{1, 2, 3},
+	})
+	if err != nil {
+		panic(err)
+	}
+	log.Printf("product 1 link bugs to productplan, bugs: %v", len(p6.Bugs))
+	p7, _, err := zt.ProductPlans.UnLinkBugs(p3.ID, zentao.PlansBugIDs{
+		Bugs: []int{1},
+	})
+	if err != nil {
+		panic(err)
+	}
+	log.Printf("product 1 link bugs to productplan, exist bugs: %v", len(p7.Bugs))
+	p8, _, err := zt.ProductPlans.CreateSub(1, p3.ID, zentao.ProductPlanMeta{
+		Title: "sub-gosdk-" + time.Now().String(),
+	})
+	if err != nil {
+		panic(err)
+	}
+	log.Printf("product 1 create sub productplan id: %v", p8.ID)
+	_, _, err = zt.ProductPlans.DeleteByID(p8.ID)
+	if err != nil {
+		panic(err)
 	}
 }
diff --git a/zentao/bugs.go b/zentao/bugs.go
index 583c5ef..0803808 100644
--- a/zentao/bugs.go
+++ b/zentao/bugs.go
@@ -18,7 +18,6 @@ package zentao
 
 import (
 	"fmt"
-	"time"
 
 	"github.com/imroc/req/v3"
 )
@@ -52,52 +51,52 @@ type BugMeta struct {
 
 type BugBody struct {
 	BugMeta
-	ID             int           `json:"id"`
-	Project        int           `json:"project"`
-	Product        int           `json:"product"`
-	Plan           int           `json:"plan"`
-	Storyversion   int           `json:"storyVersion"`
-	Totask         int           `json:"toTask"`
-	Tostory        int           `json:"toStory"`
-	Keywords       string        `json:"keywords"`
-	Hardware       string        `json:"hardware"`
-	Found          string        `json:"found"`
-	Status         interface{}   `json:"status,omitempty"` // 列表返回结构体, 详情返回字符串
-	Substatus      string        `json:"subStatus"`
-	Color          string        `json:"color"`
-	Confirmed      int           `json:"confirmed"`
-	Activatedcount int           `json:"activatedCount"`
-	Entry          string        `json:"entry"`
-	Lines          string        `json:"lines"`
-	V1             string        `json:"v1"`
-	V2             string        `json:"v2"`
-	Duplicatebug   int           `json:"duplicateBug"`
-	Linkbug        string        `json:"linkBug"`
-	Case           int           `json:"case"`
-	Caseversion    int           `json:"caseVersion"`
-	Result         int           `json:"result"`
-	Repo           int           `json:"repo"`
-	Repotype       string        `json:"repoType"`
-	Testtask       int           `json:"testtask"`
-	Deleted        bool          `json:"deleted"`
-	Activateddate  time.Time     `json:"activatedDate"`
-	Feedbackby     string        `json:"feedbackBy,omitempty"`  // 仅bug接口
-	Notifyemail    string        `json:"notifyEmail,omitempty"` // 仅bug接口
-	Mailto         []interface{} `json:"mailto"`
-	Openedby       UserMeta      `json:"openedBy"`
-	Openeddate     time.Time     `json:"openedDate"`
-	Openedbuild    string        `json:"openedBuild"`
-	Assignedto     UserMeta      `json:"assignedTo"`
-	Assigneddate   time.Time     `json:"assignedDate"`
-	Resolvedby     interface{}   `json:"resolvedBy"`
-	Resolution     string        `json:"resolution"`
-	Resolvedbuild  string        `json:"resolvedBuild"`
-	Resolveddate   interface{}   `json:"resolvedDate"`
-	Closedby       interface{}   `json:"closedBy"`
-	Closeddate     time.Time     `json:"closedDate"`
-	Lasteditedby   UserMeta      `json:"lastEditedBy"`
-	Lastediteddate time.Time     `json:"lastEditedDate"`
-	Needconfirm    bool          `json:"needconfirm,omitempty"` // 仅列表返回
+	ID             int    `json:"id"`
+	Project        int    `json:"project"`
+	Product        int    `json:"product"`
+	Plan           int    `json:"plan"`
+	Storyversion   int    `json:"storyVersion"`
+	Totask         int    `json:"toTask"`
+	Tostory        int    `json:"toStory"`
+	Keywords       string `json:"keywords"`
+	Hardware       string `json:"hardware"`
+	Found          string `json:"found"`
+	Status         any    `json:"status,omitempty"` // 列表返回结构体, 详情返回字符串
+	Substatus      string `json:"subStatus"`
+	Color          string `json:"color"`
+	Confirmed      int    `json:"confirmed"`
+	Activatedcount int    `json:"activatedCount"`
+	Entry          string `json:"entry"`
+	Lines          string `json:"lines"`
+	V1             string `json:"v1"`
+	V2             string `json:"v2"`
+	Duplicatebug   int    `json:"duplicateBug"`
+	Linkbug        string `json:"linkBug"`
+	Case           int    `json:"case"`
+	Caseversion    int    `json:"caseVersion"`
+	Result         int    `json:"result"`
+	Repo           int    `json:"repo"`
+	Repotype       string `json:"repoType"`
+	Testtask       int    `json:"testtask"`
+	Deleted        string `json:"deleted"`
+	Activateddate  string `json:"activatedDate"`
+	Feedbackby     string `json:"feedbackBy,omitempty"`  // 仅bug接口
+	Notifyemail    string `json:"notifyEmail,omitempty"` // 仅bug接口
+	Mailto         any    `json:"mailto"`
+	Openedby       any    `json:"openedBy"`
+	Openeddate     string `json:"openedDate"`
+	Openedbuild    string `json:"openedBuild"`
+	Assignedto     any    `json:"assignedTo"`
+	Assigneddate   any    `json:"assignedDate"`
+	Resolvedby     any    `json:"resolvedBy"`
+	Resolution     string `json:"resolution"`
+	Resolvedbuild  string `json:"resolvedBuild"`
+	Resolveddate   any    `json:"resolvedDate"`
+	Closedby       any    `json:"closedBy"`
+	Closeddate     string `json:"closedDate"`
+	Lasteditedby   any    `json:"lastEditedBy"`
+	Lastediteddate string `json:"lastEditedDate"`
+	Needconfirm    bool   `json:"needconfirm,omitempty"` // 仅列表返回
 }
 
 type BugCreateMeta struct {
diff --git a/zentao/productplans.go b/zentao/productplans.go
index 0b175dc..74eeb81 100644
--- a/zentao/productplans.go
+++ b/zentao/productplans.go
@@ -27,7 +27,7 @@ type ProductPlansService struct {
 }
 
 type ProductPlanMeta struct {
-	Branch int    `json:"branch,omitempty"`
+	Branch any    `json:"branch,omitempty"` // 创建时是int, List时是string
 	Title  string `json:"title"`
 	Parent int    `json:"parent,omitempty"`
 	Desc   string `json:"desc,omitempty"`
@@ -54,14 +54,16 @@ type ProductPlanCreateMsg struct {
 
 type ProductPlanListBody struct {
 	ProductPlanBody
-	Status       string `json:"status,omitempty"`
-	ClosedReason string `json:"closedReason"`
-	Stories      int    `json:"stories"`
-	Bugs         int    `json:"bugs"`
-	Hour         int    `json:"hour"`
-	Project      int    `json:"project"`
-	ProjectID    string `json:"projectID"`
-	Expired      bool   `json:"expired"`
+	BranchName   string   `json:"branchName,omitempty"`
+	Status       string   `json:"status,omitempty"`
+	ClosedReason string   `json:"closedReason,omitempty"`
+	Stories      int      `json:"stories"`
+	Bugs         int      `json:"bugs"`
+	Hour         int      `json:"hour"`
+	Project      int      `json:"project"`
+	ProjectID    string   `json:"projectID"`
+	Expired      bool     `json:"expired"`
+	Actions      []string `json:"actions,omitempty"`
 }
 
 type ProductPlanListMsg struct {
@@ -73,8 +75,8 @@ type ProductPlanListMsg struct {
 
 type ProductPlanGetMsg struct {
 	ProductPlanBody
-	Stories []StoriesBody `json:"stories"`
-	Bugs    []BugBody     `json:"bugs"`
+	Stories []StoriesBody `json:"stories,omitempty"`
+	Bugs    []BugBody     `json:"bugs,omitempty"`
 }
 
 type ProductPlanUpdateMsg struct {
@@ -84,11 +86,11 @@ type ProductPlanUpdateMsg struct {
 }
 
 type PlansStoriesIDs struct {
-	Stories []string `json:"stories"`
+	Stories []int `json:"stories"`
 }
 
 type PlansBugIDs struct {
-	Bugs []string `json:"bugs"`
+	Bugs []int `json:"bugs"`
 }
 
 type LinkStoriesMsg struct {
@@ -108,6 +110,18 @@ func (s *ProductPlansService) Create(id int, plan ProductPlanMeta) (*ProductPlan
 	return &u, resp, err
 }
 
+// CreateSub 创建产品子计划
+func (s *ProductPlansService) CreateSub(id, planID int, plan ProductPlanMeta) (*ProductPlanCreateMsg, *req.Response, error) {
+	var u ProductPlanCreateMsg
+	plan.Parent = planID
+	resp, err := s.client.client.R().
+		SetHeader("Token", s.client.token).
+		SetBody(&plan).
+		SetSuccessResult(&u).
+		Post(s.client.RequestURL(fmt.Sprintf("/products/%d/plans", id)))
+	return &u, resp, err
+}
+
 // List 获取产品计划列表
 func (s *ProductPlansService) List(id int) (*ProductPlanListMsg, *req.Response, error) {
 	var u ProductPlanListMsg
@@ -178,7 +192,7 @@ func (s *ProductPlansService) LinkBugs(id int, bug PlansBugIDs) (*LinkStoriesMsg
 		SetHeader("Token", s.client.token).
 		SetBody(&bug).
 		SetSuccessResult(&u).
-		Post(s.client.RequestURL(fmt.Sprintf("/productplans/%d/linkBugs", id)))
+		Post(s.client.RequestURL(fmt.Sprintf("/productplans/%d/linkbugs", id)))
 	return &u, resp, err
 }
 
diff --git a/zentao/stories.go b/zentao/stories.go
index d7386c9..bdef559 100644
--- a/zentao/stories.go
+++ b/zentao/stories.go
@@ -18,7 +18,6 @@ package zentao
 
 import (
 	"fmt"
-	"time"
 
 	"github.com/imroc/req/v3"
 )
@@ -51,40 +50,40 @@ type StoriesExtMeta struct {
 
 type StoriesBody struct {
 	StoriesExtMeta
-	ID             int         `json:"id"`
-	Parent         int         `json:"parent"`
-	Product        int         `json:"product"`
-	Branch         int         `json:"branch"`
-	Module         int         `json:"module"`
-	Plan           string      `json:"plan"`
-	Frombug        int         `json:"fromBug"`
-	Title          string      `json:"title"`
-	Type           string      `json:"type"`
-	Status         string      `json:"status"`
-	Substatus      string      `json:"subStatus"`
-	Color          string      `json:"color"`
-	Stage          string      `json:"stage"`
-	Stagedby       string      `json:"stagedBy"`
-	Mailto         string      `json:"mailto"`
-	Openedby       UserMeta    `json:"openedBy"`
-	Openeddate     time.Time   `json:"openedDate"`
-	Assignedto     string      `json:"assignedTo"`
-	Assigneddate   interface{} `json:"assignedDate"`
-	Lasteditedby   string      `json:"lastEditedBy"`
-	Lastediteddate time.Time   `json:"lastEditedDate"`
-	Reviewedby     string      `json:"reviewedBy"`
-	Revieweddate   interface{} `json:"reviewedDate"`
-	Closedby       string      `json:"closedBy"`
-	Closeddate     interface{} `json:"closedDate"`
-	Closedreason   string      `json:"closedReason"`
-	Tobug          int         `json:"toBug"`
-	Childstories   string      `json:"childStories"`
-	Linkstories    string      `json:"linkStories"`
-	Duplicatestory int         `json:"duplicateStory"`
-	Version        int         `json:"version"`
-	Urchanged      string      `json:"URChanged"`
-	Deleted        string      `json:"deleted"`
-	Plantitle      string      `json:"planTitle,omitempty"`
+	ID             int    `json:"id"`
+	Parent         any    `json:"parent"` // 可能是数组, 产品计划时是数组
+	Product        int    `json:"product"`
+	Branch         int    `json:"branch"`
+	Module         int    `json:"module"`
+	Plan           string `json:"plan"`
+	Frombug        int    `json:"fromBug"`
+	Title          string `json:"title"`
+	Type           string `json:"type"`
+	Status         string `json:"status"`
+	Substatus      string `json:"subStatus"`
+	Color          string `json:"color"`
+	Stage          string `json:"stage"`
+	Stagedby       string `json:"stagedBy"`
+	Mailto         string `json:"mailto"`
+	Openedby       any    `json:"openedBy"` // 产品计划是string, 其他可能是UserMeta
+	Openeddate     string `json:"openedDate"`
+	Assignedto     string `json:"assignedTo"`
+	Assigneddate   any    `json:"assignedDate"`
+	Lasteditedby   string `json:"lastEditedBy"`
+	Lastediteddate string `json:"lastEditedDate"`
+	Reviewedby     string `json:"reviewedBy"`
+	Revieweddate   any    `json:"reviewedDate"`
+	Closedby       string `json:"closedBy"`
+	Closeddate     any    `json:"closedDate"`
+	Closedreason   string `json:"closedReason"`
+	Tobug          int    `json:"toBug"`
+	Childstories   string `json:"childStories"`
+	Linkstories    string `json:"linkStories"`
+	Duplicatestory int    `json:"duplicateStory"`
+	Version        int    `json:"version"`
+	Urchanged      string `json:"URChanged"`
+	Deleted        string `json:"deleted"`
+	Plantitle      string `json:"planTitle,omitempty"`
 }
 
 type StoriesCreateMeta struct {