diff --git a/rocksdb.go b/rocksdb.go
index 62a3f73..d323064 100644
--- a/rocksdb.go
+++ b/rocksdb.go
@@ -4,6 +4,8 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"regexp"
+	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -55,6 +57,10 @@ type Metadata struct {
 
 type ValueType int
 
+const (
+	VT_BOOL ValueType = 00000 + iota
+)
+
 const (
 	VT_INT ValueType = 10000 + iota
 	VT_INT8
@@ -94,7 +100,9 @@ type Field struct {
 
 // Parse 从字符串中解析 var a int; a = 0; a < 0 && a > 5 ;
 func (field *Field) Parse(code string) {
-
+	codes := strings.Split(code, ";")
+	re := regexp.MustCompile("var +([a-zA-Z_]+) +[a-zA-Z]+[8|16|32|64]{0,1}")
+	re.FindStringSubmatch(codes[0])
 }
 
 // Table 表结构
diff --git a/table_test.go b/table_test.go
new file mode 100644
index 0000000..4618d3c
--- /dev/null
+++ b/table_test.go
@@ -0,0 +1,47 @@
+package main
+
+import (
+	"regexp"
+	"strings"
+	"testing"
+)
+
+var ReKeyDefined = regexp.MustCompile("var +([a-zA-Z_]+) +([a-zA-Z0-9]+) *(\\([0-9]+\\))")
+
+type parseTest struct {
+	PS     string
+	Result []string
+}
+
+func TestParseRe(t *testing.T) {
+
+	var parseCollection []parseTest
+	parseCollection = append(parseCollection,
+		parseTest{
+			PS:     "var a int; a = 0 ; a >= 1 && a <= 4",
+			Result: []string{"a", "int"},
+		},
+		parseTest{
+			PS:     "var das_das int64; das_das = 0 ; das_das >= 1 && das_das <= 4",
+			Result: []string{"das_das", "int64"},
+		},
+		parseTest{
+			PS:     "var BitTkoen text; BitTkoen = 0 ; BitTkoen >= 1 && BitTkoen <= 4",
+			Result: []string{"BitTkoen", "text"},
+		},
+		parseTest{
+			PS:     "var BitTkoen char(24); BitTkoen = 0 ; BitTkoen >= 1 && BitTkoen <= 4",
+			Result: []string{"BitTkoen", "text"},
+		},
+	)
+
+	for _, parse := range parseCollection {
+		codes := strings.Split(parse.PS, ";")
+		result := ReKeyDefined.FindStringSubmatch(codes[0])
+		if len(result) >= 3 && !(result[1] == parse.Result[0] && result[2] == parse.Result[1]) {
+			t.Error(result)
+		}
+		t.Error(result)
+	}
+
+}