context.go
func (ctx *Context) GetCookieFloat64(name string) float64 {
	v, _ := strconv.ParseFloat(ctx.GetCookie(name), 64)
	return v
}
func (ctx *Context) GetCookieFloat64(name string) float64 {
	v, _ := strconv.ParseFloat(ctx.GetCookie(name), 64)
	return v
}
// GetCookieFloat64 returns cookie result in float64 type.