diff --git a/README.md b/README.md
index ed93d36..0e82715 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,9 @@ golang 实现普通验证码,同时支持中文汉字点击行为验证码
 
 ![](./previews/test_2.png)
 
+![](./previews/test_3.png)
+
+
 ## Quick Start 使用
 
 *普通验证码*
diff --git a/canvas.go b/canvas.go
index 5fbeec9..102d264 100644
--- a/canvas.go
+++ b/canvas.go
@@ -147,6 +147,7 @@ func (c *Canvas) getFontPostions(text string) []Point {
 	chCount := utf8.RuneCountInString(text)
 
 	var points []Point
+
 	if c.Config.Style == CaptchaStyle_Normal {
 
 		padding := c.Config.FontSize / 2
@@ -164,6 +165,7 @@ func (c *Canvas) getFontPostions(text string) []Point {
 
 		for i := 0; i < chCount; i++ {
 			p := c.randomFontPosition(56)
+
 			points = append(points, p)
 		}
 	}
@@ -417,4 +419,4 @@ func (c *Canvas) DrawCircle(xc, yc, r int, fill bool, cc color.Color) {
 		}
 		x++
 	}
-}
\ No newline at end of file
+}
diff --git a/captcha.go b/captcha.go
index 2b9cf31..82481e1 100644
--- a/captcha.go
+++ b/captcha.go
@@ -128,7 +128,7 @@ func (cp *Captcha) GenCaptchaImage(text string) (CaptchaResult, error) {
 	result.ImageBase64 = fmt.Sprintf("data:%s;base64,%s", "image/png", base64.StdEncoding.EncodeToString(imageBytes))
 	result.Text = text
 
-	// writeImageFile("./previews/test.png", imageBytes)
+	writeImageFile("./previews/test.png", imageBytes)
 	return result, nil
 
 }
diff --git a/captcha_test.go b/captcha_test.go
index c9641e1..429b97e 100644
--- a/captcha_test.go
+++ b/captcha_test.go
@@ -27,8 +27,11 @@ func TestGenGenBehaviorCaptcha(t *testing.T) {
 
 	cpt := NewCaptcha(260, 100)
 	cpt.SetBackgroundColor(color.RGBA{R: uint8(20), G: uint8(8), B: uint8(100), A: uint8(255)})
-	// cpt.Config.Style = CaptchaStyle_Behavior
+	cpt.Config.Style = CaptchaStyle_Behavior
 	cpt.Config.MaxRotate = 20
+
+	t.Logf("cpt.Config: %+v ", cpt.Config)
+
 	result, err := cpt.GenBehaviorCNCaptcha()
 	t.Logf("GenCaptchaImage: %+v %+v", result, err)
 }
diff --git a/previews/test_3.png b/previews/test_3.png
new file mode 100644
index 0000000..1923e84
Binary files /dev/null and b/previews/test_3.png differ