diff --git a/base.go b/base.go
index eb90eb8..cfe3e5d 100644
--- a/base.go
+++ b/base.go
@@ -12,17 +12,17 @@ func buildBodyRequest(wf *Workflow) *http.Request {
 	var err error
 	contentType := ""
 
-	if wf.Body.IOBody() == nil {
+	if wf.Body.GetIOBody() == nil {
 		req, err = http.NewRequest(wf.Method, wf.GetRawURL(), nil)
 	} else {
 		var bodybuf *bytes.Buffer
-		switch wf.Body.IOBody().(type) {
+		switch wf.Body.GetIOBody().(type) {
 		case []byte:
-			bodybuf = bytes.NewBuffer(wf.Body.IOBody().([]byte))
+			bodybuf = bytes.NewBuffer(wf.Body.GetIOBody().([]byte))
 		case *bytes.Buffer:
-			bodybuf = bytes.NewBuffer(wf.Body.IOBody().(*bytes.Buffer).Bytes())
+			bodybuf = bytes.NewBuffer(wf.Body.GetIOBody().(*bytes.Buffer).Bytes())
 		default:
-			panic(errors.New("the type is not exist, type is" + reflect.TypeOf(wf.Body.IOBody).String()))
+			panic(errors.New("the type is not exist, type is" + reflect.TypeOf(wf.Body.GetIOBody()).String()))
 		}
 		req, err = http.NewRequest(wf.Method, wf.GetRawURL(), bodybuf)
 	}
diff --git a/session.go b/session.go
index 8b5e0ed..93126d6 100644
--- a/session.go
+++ b/session.go
@@ -36,8 +36,8 @@ func (body *Body) SetIOBody(iobody interface{}) {
 	body.ioBody = iobody
 }
 
-// IOBody 获取ioBody值
-func (body *Body) IOBody() interface{} {
+// GetIOBody 获取ioBody值
+func (body *Body) GetIOBody() interface{} {
 	return body.ioBody
 }
 
@@ -70,16 +70,15 @@ func (body *Body) AddContentType(ct string) {
 
 // IBody 相关参数结构
 type IBody interface {
-
-	// Query       map[string][]string
-	IOBody() interface{}
-	// SetIOBody
+	// GetIOBody  获取iobody data
+	GetIOBody() interface{}
+	// SetIOBody  设置iobody data
 	SetIOBody(iobody interface{})
-	// Files       []UploadFile
+	// ContentType      返回包括 Prefix 所有的ContentType
 	ContentType() string
 	// AppendContent
 	AddContentType(ct string)
-	// AddPrefix 添加 Prefix
+	// SetPrefix 设置 Prefix;  唯一前缀
 	SetPrefix(ct string)
 }