diff --git a/README.md b/README.md
index 124b582..f0304d0 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@
 3.任务注册，像写http.Handler一样方便
 4.任务panic处理
 5.阻塞策略处理
+6.任务完成支持返回执行备注
 ```
 
 ## Example
@@ -16,6 +17,7 @@ package main
 import (
 	xxl "github.com/xxl-job/go-client"
 	"github.com/xxl-job/go-client/example/task"
+	"log"
 )
 
 func main() {
@@ -29,9 +31,9 @@ func main() {
 	exec.Init()
 	exec.RegTask("task.test", task.Test)
 	exec.RegTask("task.test2", task.Test2)
-	exec.Run()
+	exec.RegTask("task.panic", task.Panic)
+	log.Fatal(exec.Run())
 }
-
 ```
 # see
 github.com/xxl-job/go-client/example/
diff --git a/example/task/panic.go b/example/task/panic.go
index ab3b333..b1305a9 100644
--- a/example/task/panic.go
+++ b/example/task/panic.go
@@ -5,6 +5,6 @@ import (
 	xxl "github.com/xxl-job/go-client"
 )
 
-func Panic(cxt context.Context, param *xxl.RunReq) {
+func Panic(cxt context.Context, param *xxl.RunReq) (msg string) {
 	panic("test panic")
 }
diff --git a/example/task/test.go b/example/task/test.go
index 6deb947..ea7c346 100644
--- a/example/task/test.go
+++ b/example/task/test.go
@@ -6,6 +6,7 @@ import (
 	xxl "github.com/xxl-job/go-client"
 )
 
-func Test(cxt context.Context, param *xxl.RunReq) {
-	fmt.Println("test one task" + param.ExecutorHandler + " param：" + param.ExecutorParams)
+func Test(cxt context.Context, param *xxl.RunReq) (msg string) {
+	fmt.Println("test one task" + param.ExecutorHandler + " param：" + param.ExecutorParams + "log_id" + xxl.Int64ToStr(param.LogID))
+	return "test done"
 }
diff --git a/example/task/test2.go b/example/task/test2.go
index 36dba92..ecfc2c4 100644
--- a/example/task/test2.go
+++ b/example/task/test2.go
@@ -7,7 +7,7 @@ import (
 	"time"
 )
 
-func Test2(cxt context.Context, param *xxl.RunReq) {
+func Test2(cxt context.Context, param *xxl.RunReq) (msg string) {
 	num := 1
 	for {
 
diff --git a/executor.go b/executor.go
index 31c699a..757561f 100644
--- a/executor.go
+++ b/executor.go
@@ -95,7 +95,12 @@ func (e *executor) runTask(writer http.ResponseWriter, request *http.Request) {
 	defer e.mu.Unlock()
 	req, _ := ioutil.ReadAll(request.Body)
 	param := &RunReq{}
-	json.Unmarshal(req, &param)
+	err := json.Unmarshal(req, &param)
+	if err != nil {
+		writer.Write(returnCall(param, 500, "params err"))
+		log.Println("参数解析错误:" + string(req))
+		return
+	}
 	log.Printf("任务参数:%v", param)
 	if !e.regList.Exists(param.ExecutorHandler) {
 		writer.Write(returnCall(param, 500, "Task not registered"))
@@ -138,7 +143,7 @@ func (e *executor) killTask(writer http.ResponseWriter, request *http.Request) {
 	defer e.mu.Unlock()
 	req, _ := ioutil.ReadAll(request.Body)
 	param := &killReq{}
-	json.Unmarshal(req, &param)
+	_ = json.Unmarshal(req, &param)
 	if !e.runList.Exists(Int64ToStr(param.JobID)) {
 		writer.Write(returnKill(param, 500))
 		log.Println("任务[" + Int64ToStr(param.JobID) + "]没有运行")
@@ -154,8 +159,7 @@ func (e *executor) killTask(writer http.ResponseWriter, request *http.Request) {
 func (e *executor) taskLog(writer http.ResponseWriter, request *http.Request) {
 	data, _ := ioutil.ReadAll(request.Body)
 	req := &logReq{}
-	json.Unmarshal(data, &req)
-
+	_ = json.Unmarshal(data, &req)
 	writer.Write(returnLog(req, 200))
 }
 
@@ -181,12 +185,12 @@ func (e *executor) registry() {
 		}
 		body, err := ioutil.ReadAll(result.Body)
 		res := &res{}
-		json.Unmarshal(body, &res)
+		_ = json.Unmarshal(body, &res)
 		if res.Code != 200 {
 			log.Println("执行器注册失败:" + string(body))
 		}
 		log.Println("执行器注册成功:" + string(body))
-		result.Body.Close()
+		_ = result.Body.Close()
 		t.Reset(time.Second * time.Duration(20)) //20秒心跳防止过期
 	}
 }
@@ -210,7 +214,7 @@ func (e *executor) registryRemove() {
 	}
 	body, err := ioutil.ReadAll(res.Body)
 	log.Println("执行器摘除成功:" + string(body))
-	res.Body.Close()
+	_ = res.Body.Close()
 }
 
 //回调任务列表
diff --git a/optinos.go b/optinos.go
index f210ac2..8ac8c24 100644
--- a/optinos.go
+++ b/optinos.go
@@ -34,7 +34,6 @@ type Option func(o *Options)
 var (
 	DefaultExecutorPort = "9999"
 	DefaultRegistryKey  = "golang-jobs"
-	DefaultTimeOut      = 10 * time.Second
 )
 
 // 设置调度中心地址
@@ -51,13 +50,6 @@ func AccessToken(token string) Option {
 	}
 }
 
-// 请求令牌
-func Timeout(timeout time.Duration) Option {
-	return func(o *Options) {
-		o.Timeout = timeout
-	}
-}
-
 // 设置执行器IP
 func ExecutorIp(ip string) Option {
 	return func(o *Options) {
diff --git a/task.go b/task.go
index 64be769..32804cd 100644
--- a/task.go
+++ b/task.go
@@ -7,7 +7,7 @@ import (
 )
 
 //任务执行函数
-type TaskFunc func(cxt context.Context, param *RunReq)
+type TaskFunc func(cxt context.Context, param *RunReq) string
 
 //任务
 type Task struct {
@@ -23,7 +23,6 @@ type Task struct {
 
 //运行任务
 func (t *Task) Run(callback func(code int64, msg string)) {
-	t.Ext, t.Cancel = context.WithCancel(context.Background())
 	defer func(cancel func()) {
 		if err := recover(); err != nil {
 			log.Println(t.Info()+" panic: ", err)
@@ -31,8 +30,8 @@ func (t *Task) Run(callback func(code int64, msg string)) {
 			cancel()
 		}
 	}(t.Cancel)
-	t.fn(t.Ext, t.Param)
-	callback(200, "")
+	msg := t.fn(t.Ext, t.Param)
+	callback(200, msg)
 	return
 }