captcha

Documentation

Index

• type Captcha
  • func NewCaptcha(w, h, CodeLen int) *Captcha
  • func (captcha *Captcha) OutPut() (string, *image.RGBA)
  • func (captcha *Captcha) RangeRand(min, max int64) int64
  • func (captcha *Captcha) SetFontName(FontName string)
  • func (captcha *Captcha) SetFontPath(FontPath string)
  • func (captcha *Captcha) SetFontSize(fontSize float64)
  • func (captcha *Captcha) SetMode(mode int)
• type Image
  • func Generate(w, h, codeLen, mode int, opt ...string) (code string, image Image, err error)
  • func (i Image) ToBase64String() string

Types

type Captcha

type Captcha struct {
	W, H, CodeLen      int
	FontSize           float64
	Dpi                int
	FontPath, FontName string
	// contains filtered or unexported fields
}

图形验证码 使用字体默认ttf格式 w 图片宽度, h图片高度，CodeLen验证码的个数 FontSize 字体大小, Dpi 清晰度，FontPath 字体目录， FontName 字体名字 mode 验证模式 0：普通字符串，1：10以内简单数学公式

func NewCaptcha

func NewCaptcha(w, h, CodeLen int) *Captcha

实例化验证码

func (*Captcha) OutPut

func (captcha *Captcha) OutPut() (string, *image.RGBA)

输出

func (*Captcha) RangeRand

func (captcha *Captcha) RangeRand(min, max int64) int64

获取区间[-m, n]的随机数

func (*Captcha) SetFontName

func (captcha *Captcha) SetFontName(FontName string)

设置字体名称

func (*Captcha) SetFontPath

func (captcha *Captcha) SetFontPath(FontPath string)

设置字体路径

func (*Captcha) SetFontSize

func (captcha *Captcha) SetFontSize(fontSize float64)

设置字体大小

func (*Captcha) SetMode

func (captcha *Captcha) SetMode(mode int)

设置模式

type Image

type Image []byte

func Generate

func Generate(w, h, codeLen, mode int, opt ...string) (code string, image Image, err error)

"data:image/png;base64," + base64.StdEncoding.EncodeToString(buf.Bytes()) CaptchaGenerate 生成captcha

func (Image) ToBase64String

func (i Image) ToBase64String() string