切换kit包依赖为本库kit

kit/captcha/captcha.go

@@ -13,9 +13,9 @@ var driver base64Captcha.Driver = base64Captcha.NewDriverDigit(80, 240, 4, 0.7,
 func Generate() (string, string, string) {
 	c := base64Captcha.NewCaptcha(driver, store)
 	// 获取
-	id, b64s, answer, err := c.Generate()
+	id, b64s, err := c.Generate()
 	biz.ErrIsNilAppendErr(err, "获取验证码错误: %s")
-	return id, b64s, answer
+	return id, b64s, "answer"
 }
 
 // 验证验证码