diff --git a/README.md b/README.md
index 8d71643..8a5274d 100644
--- a/README.md
+++ b/README.md
@@ -236,18 +236,18 @@ func main() {
 }
 
 func opencv() {
-	name := "test.png"
-	name1 := "test_001.png"
-	robotgo.SaveCapture(name, 10, 10, 30, 30)
-	robotgo.SaveCapture(name1)
+  name := "test.png"
+  name1 := "test_001.png"
+  robotgo.SaveCapture(name, 10, 10, 30, 30)
+  robotgo.SaveCapture(name1)
 
-	fmt.Print("gcv find image: ")
-	fmt.Println(gcv.FindImgFile(name, name1))
+  fmt.Print("gcv find image: ")
+  fmt.Println(gcv.FindImgFile(name, name1))
 
-	bit := robotgo.OpenBitmap(name)
+  bit := robotgo.OpenBitmap(name)
   defer robotgo.FindBitmap(bit)
-	fmt.Print("find bitmap: ")
-	fmt.Println(robotgo.FindBitmap(bit))
+  fmt.Print("find bitmap: ")
+  fmt.Println(robotgo.FindBitmap(bit))
 }
 ```
 
@@ -286,10 +286,10 @@ func add() {
 }
 
 func low() {
-	EvChan := hook.Start()
+	evChan := hook.Start()
 	defer hook.End()
 
-	for ev := range EvChan {
+	for ev := range evChan {
 		fmt.Println("hook: ", ev)
 	}
 }
diff --git a/README_zh.md b/README_zh.md
index 253a2b3..502a0f4 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -234,18 +234,18 @@ func main() {
 }
 
 func opencv() {
-	name := "test.png"
-	name1 := "test_001.png"
-	robotgo.SaveCapture(name, 10, 10, 30, 30)
-	robotgo.SaveCapture(name1)
+  name := "test.png"
+  name1 := "test_001.png"
+  robotgo.SaveCapture(name, 10, 10, 30, 30)
+  robotgo.SaveCapture(name1)
 
-	fmt.Print("gcv find image: ")
-	fmt.Println(gcv.FindImgFile(name, name1))
+  fmt.Print("gcv find image: ")
+  fmt.Println(gcv.FindImgFile(name, name1))
 
-	bit := robotgo.OpenBitmap(name)
+  bit := robotgo.OpenBitmap(name)
   defer robotgo.FindBitmap(bit)
-	fmt.Print("find bitmap: ")
-	fmt.Println(robotgo.FindBitmap(bit))
+  fmt.Print("find bitmap: ")
+  fmt.Println(robotgo.FindBitmap(bit))
 }
 ```
 
@@ -284,10 +284,10 @@ func add() {
 }
 
 func low() {
-	EvChan := hook.Start()
+	evChan := hook.Start()
 	defer hook.End()
 
-	for ev := range EvChan {
+	for ev := range evChan {
 		fmt.Println("hook: ", ev)
 	}
 }
diff --git a/keycode.go b/keycode.go
index 82db599..4ec2d3b 100644
--- a/keycode.go
+++ b/keycode.go
@@ -37,6 +37,8 @@ var Keycode = uMap{
 	"9": 10,
 	"0": 11,
 	"-": 12,
+	"=": 13,
+	"_": 12,
 	"+": 13,
 	//
 	"q":  16,
@@ -51,7 +53,10 @@ var Keycode = uMap{
 	"p":  25,
 	"[":  26,
 	"]":  27,
+	"{":  26,
+	"}":  27,
 	"\\": 43,
+	"|":  43,
 	//
 	"a": 30,
 	"s": 31,
@@ -64,6 +69,8 @@ var Keycode = uMap{
 	"l": 38,
 	";": 39,
 	"'": 40,
+	":": 39,
+	`"`: 40,
 	//
 	"z": 44,
 	"x": 45,
@@ -75,6 +82,9 @@ var Keycode = uMap{
 	",": 51,
 	".": 52,
 	"/": 53,
+	"<": 51,
+	">": 52,
+	"?": 53,
 	//
 	"f1":  59,
 	"f2":  60,
@@ -92,18 +102,18 @@ var Keycode = uMap{
 	"esc":     1,
 	"delete":  14,
 	"tab":     15,
+	"enter":   28,
 	"ctrl":    29,
 	"control": 29,
-	"alt":     56,
-	"space":   57,
 	"shift":   42,
 	"rshift":  54,
-	"enter":   28,
+	"space":   57,
 	//
+	"alt":     56,
+	"ralt":    3640,
 	"cmd":     3675,
 	"command": 3675,
 	"rcmd":    3676,
-	"ralt":    3640,
 	//
 	"up":    57416,
 	"down":  57424,