diff --git a/tree/consts.go b/tree/consts.go
index 203b24c..9a34962 100644
--- a/tree/consts.go
+++ b/tree/consts.go
@@ -18,10 +18,30 @@ const (
 	KeywordArrayEnd = "]"
 	// KeywordColon 冒号
 	KeywordColon = ":"
+	// KeywordDot .
+	KeywordDot = "."
 	// KeywordDoubleQuote 双引号
 	KeywordDoubleQuote = `"`
 	// KeywordEscapeSymbol 转义符号
 	KeywordEscapeSymbol = `\`
+	// KeywordSpace 空格
+	KeywordSpace = " "
+	// KeywordMinus 负号
+	KeywordMinus = "-"
+	// KeywordTrueStart true的起始值
+	KeywordTrueStart = "t"
+	// KeywordFalseStart false的起始值
+	KeywordFalseStart = "f"
+	KeywordZero       = "0"
+	KeywordOne        = "1"
+	KeywordTwo        = "2"
+	KeywordThree      = "3"
+	KeywordFour       = "4"
+	KeywordFive       = "5"
+	KeywordSix        = "6"
+	KeywordSeven      = "7"
+	KeywordEight      = "8"
+	KeywordNine       = "9"
 )
 
 const (
@@ -33,6 +53,8 @@ const (
 	ValueTypeInteger = "int64"
 	// ValueTypeFloat float类型
 	ValueTypeFloat = "float64"
+	// ValueTypeNumber 数字
+	ValueTypeNumber = "number"
 	// ValueTypeMap map数据
 	ValueTypeMap = "map"
 	// ValueTypeArray 数组
diff --git a/tree/generate.go b/tree/generate.go
index 09a7160..4840708 100644
--- a/tree/generate.go
+++ b/tree/generate.go
@@ -7,7 +7,10 @@
 // Date : 2023-03-28 18:42
 package tree
 
-import "strings"
+import (
+	"github.com/pkg/errors"
+	"strings"
+)
 
 // New 生成一棵JSON树
 //
@@ -17,25 +20,11 @@ import "strings"
 func New(jsonData string) *Generate {
 	jsonData = strings.TrimSpace(jsonData)
 	g := &Generate{
-		jsonData: jsonData,
-	}
-	if g.isArray() {
-		g.root = &Node{
-			IsVirtual:       true,
-			Value:           nil,
-			ValueType:       "",
-			Key:             "",
-			Show:            false,
-			ShowKey:         "",
-			AllowEdit:       false,
-			AllowChangeType: false,
-			DefaultValue:    nil,
-			ParentNode:      nil,
-			PreBrotherNode:  nil,
-			LastBrotherNode: nil,
-			SonNodeList:     nil,
-		}
+		jsonData:     jsonData,
+		jsonDataByte: []byte(jsonData),
 	}
+	g.root = NewVirtualNode()
+	g.currentNode = g.root
 	return g
 }
 
@@ -45,8 +34,118 @@ func New(jsonData string) *Generate {
 //
 // Date : 22:46 2023/3/28
 type Generate struct {
-	root     *Node
-	jsonData string
+	root         *Node // 根节点
+	currentNode  *Node // 当前节点
+	jsonData     string
+	jsonDataByte []byte
+}
+
+// getKey 获取jsonKey TODO : 转义符识别
+//
+// Author : zhangdeman001@ke.com<张德满>
+//
+// Date : 11:36 2023/3/29
+func (g *Generate) getKey(startIndex int) (string, int, error) {
+	keyCharList := []string{}
+	hasStart := false
+	for startIndex < len(g.jsonDataByte) {
+		charStr := string(g.jsonDataByte[startIndex])
+		if charStr == KeywordSpace {
+			// 跳过空格
+			continue
+		}
+		if charStr == KeywordDoubleQuote && !hasStart {
+			// 第一次遇见双引号
+			hasStart = true
+		}
+		if charStr == KeywordDoubleQuote && hasStart {
+			// 第二次遇见双引号，key探寻结束
+			break
+		}
+		keyCharList = append(keyCharList, charStr)
+		startIndex++
+	}
+	jsonKey := strings.Join(keyCharList, "")
+
+	return jsonKey, startIndex, nil
+}
+
+// getValueType 获取数据类型
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 14:37 2023/3/29
+func (g *Generate) getValueType(startIndex int) (string, int, error) {
+	// 指针向后, 探寻到冒号之后第一个非空格字符串
+	hasFindColon := false
+	for startIndex < len(g.jsonDataByte) {
+		charStr := string(g.jsonDataByte[startIndex])
+		if !hasFindColon {
+			if charStr == KeywordSpace {
+				// 跳过空格
+				startIndex++
+				continue
+			}
+			if charStr != KeywordSpace {
+				// 非空格
+				if charStr != KeywordColon {
+					return "", startIndex, errors.New("value is invalid")
+				}
+				startIndex++
+				hasFindColon = true
+				break
+			}
+		}
+	}
+
+	if !hasFindColon {
+		return "", startIndex, errors.New("value is invalid")
+	}
+
+	keyValType := ""
+	// 冒号后面探寻值的类型
+	for startIndex < len(g.jsonDataByte) {
+		charStr := string(g.jsonDataByte[startIndex])
+		if charStr == KeywordSpace {
+			// 跳过空格
+			startIndex++
+			continue
+		}
+
+		// 非空
+		switch charStr {
+		case KeywordMinus:
+			fallthrough
+		case KeywordOne:
+			fallthrough
+		case KeywordTwo:
+			fallthrough
+		case KeywordThree:
+			fallthrough
+		case KeywordFour:
+			fallthrough
+		case KeywordFive:
+			fallthrough
+		case KeywordSix:
+			fallthrough
+		case KeywordSeven:
+			fallthrough
+		case KeywordEight:
+			fallthrough
+		case KeywordNine:
+			keyValType = ValueTypeNumber
+		case KeywordDoubleQuote:
+			keyValType = ValueTypeString
+		case KeywordArrayStart:
+			keyValType = ValueTypeArray
+		case KeywordObjectStart:
+			keyValType = ValueTypeMap
+		default:
+			return "", startIndex, errors.New("value type is invalid")
+		}
+		break
+	}
+	return keyValType, startIndex, nil
 }
 
 // isObject 整体是否为对象