Git 项目推荐 | 图片验证码生成库

    go get github.com/lifei6671/gocaptcha/

    go get github.com/golang/freetype
    go get github.com/golang/freetype/truetype
    go get golang.org/x/image

  func Get(w http.ResponseWriter, r *http.Request) {
      //初始化一个验证码对象
        captchaImage,err := gocaptcha.NewCaptchaImage(dx,dy,gocaptcha.RandLightColor());

      //画上三条随机直线
      captchaImage.Drawline(3);

      //画边框
      captchaImage.DrawBorder(gocaptcha.ColorToRGB(0x17A7A7A));

      //画随机噪点
      captchaImage.DrawNoise(gocaptcha.CaptchaComplexHigh);

      //画随机文字噪点
      captchaImage.DrawTextNoise(gocaptcha.CaptchaComplexLower);
      //画验证码文字，可以预先保持到Session种或其他储存容器种
      captchaImage.DrawText(gocaptcha.RandText(4));
        if err != nil {
              fmt.Println(err)
        }
      //将验证码保持到输出流种，可以是文件或HTTP流等
          captchaImage.SaveImage(w,gocaptcha.ImageFormatJpeg);
    }