test all success!

.gitignore

@@ -1 +1,2 @@
 *.pyc
+*.vscode

session.go

@@ -18,6 +18,8 @@ import (
 type Body struct {
 	// Query       map[string][]string
 	ioBody interface{}
+	// prefix ContentType 前缀
+	prefix string
 	// Files       []UploadFile
 	contentTypes map[string]int
 }
@@ -41,19 +43,36 @@ func (body *Body) IOBody() interface{} {
 
 // ContentType 获取ContentType
 func (body *Body) ContentType() string {
-	content := ""
+	content := body.prefix + ";"
 	for kvalue := range body.contentTypes {
 		content += kvalue + ";"
 	}
 	return strings.TrimRight(content, ";")
 }
 
+// AddPrefix AddPrefix 和 AddContentType的顺序会影响到ContentType()的返回结果
+func (body *Body) AddPrefix(ct string) {
+	content := body.prefix
+	for _, v := range strings.Split(ct, ";") {
+		v = strings.Trim(v, " ")
+		if v != "" {
+			if body.prefix != v {
+				content += v + ";"
+			}
+		}
+	}
+	content = strings.TrimRight(content, ";")
+	body.prefix = content
+}
+
 // AddContentType 添加 Add Type类型
 func (body *Body) AddContentType(ct string) {
 	for _, v := range strings.Split(ct, ";") {
 		v = strings.Trim(v, " ")
 		if v != "" {
-			body.contentTypes[v] = 1
+			if body.prefix != v {
+				body.contentTypes[v] = 1
+			}
 		}
 	}
 
@@ -70,6 +89,8 @@ type IBody interface {
 	ContentType() string
 	// AppendContent
 	AddContentType(ct string)
+	// AddPrefix 添加 Prefix
+	AddPrefix(ct string)
 }
 
 // BasicAuth 帐号认真结构
@@ -105,10 +126,10 @@ const (
 	TypeURLENCODED = "application/x-www-form-urlencoded"
 	// TypeForm PostForm类型
 	TypeForm = TypeURLENCODED
-	// TypeContentEmpty 没有Form的类型 Content
-	TypeContentEmpty = "ContentEmpty"
 	// TypeFormData 类型
 	TypeFormData = "multipart/form-data"
+	// TypeMixed Mixed类型
+	TypeMixed = "multipart/mixed"
 
 	// HeaderKeyHost Host
 	HeaderKeyHost = "Host"

workflow.go

@@ -1,6 +1,7 @@
 package requests
 
 import (
+	"log"
 	"net/http"
 	"net/url"
 	"regexp"
@@ -175,23 +176,22 @@ func (wf *Workflow) SetURLRawPath(path string) *Workflow {
 
 // SetBody 参数设置
 func (wf *Workflow) SetBody(params ...interface{}) *Workflow {
-	if params != nil {
 
+	if params != nil {
 		plen := len(params)
 		defaultContentType := TypeURLENCODED
 
 		if plen >= 2 {
 			t := params[plen-1]
 			defaultContentType = t.(string)
-			wf.Body.AddContentType(defaultContentType)
+			wf.Body.AddPrefix(defaultContentType)
 		} else {
-			wf.Body.AddContentType(defaultContentType)
+			wf.Body.AddPrefix(defaultContentType)
 		}
 
 		if defaultContentType == TypeFormData {
 			createMultipart(wf.Body, params)
 		} else {
-
 			var values url.Values
 			switch param := params[0].(type) {
 			case map[string]string:
@@ -211,7 +211,7 @@ func (wf *Workflow) SetBody(params ...interface{}) *Workflow {
 
 		}
 	}
-
+	log.Println(wf.Body.ContentType())
 	return wf
 }