func (c *Configer) DefaultFloat(key string, defaultval float64) float64 {
	v, err := c.Float(key)
	if err != nil {
		return defaultval
	}
	return v
}
// DefaultFloat returns the float64 value for a given key.
// if err != nil return defaltval
DefaultFloat returns the float64 value for a given key.
if err != nil return defaltval
// DefaultFloat returns the float64 value for a given key . // if err ! = nil return defaltval
func (c *Configer) DefaultFloat(key string, defaultval float64) float64 {
	v, err := c.Float(key)
	if err != nil {
		return defaultval
	}
	return v
}
func ( c * Configer ) DefaultFloat ( key string , defaultval float64 ) float64 { v , err := c . Float ( key ) if err != nil { return defaultval } return v }
DefaultFloat returns the float64 value for a given key.
DefaultFloat returns the float64 value for a given key .