func NewFakeConfig() Configer {
	return &fakeConfigContainer{
		data: make(map[string]string),
	}
}
NewFakeConfig return a fake Configer
package config
import (
	"errors"
	"strconv"
	"strings"
)
type fakeConfigContainer struct {
	data map[string]string
}
func (c *fakeConfigContainer) getData(key string) string {
	return c.data[strings.ToLower(key)]
}
func (c *fakeConfigContainer) Set(key, val string) error {
	c.data[strings.ToLower(key)] = val
	return nil
}
func (c *fakeConfigContainer) String(key string) string {
	return c.getData(key)
}
func (c *fakeConfigContainer) DefaultString(key string, defaultval string) string {
	v := c.String(key)
	if v == "" {
		return defaultval
	}
	return v
}
func (c *fakeConfigContainer) Strings(key string) []string {
	v := c.String(key)
	if v == "" {
		return nil
	}
	return strings.Split(v, ";")
}
func (c *fakeConfigContainer) DefaultStrings(key string, defaultval []string) []string {
	v := c.Strings(key)
	if v == nil {
		return defaultval
	}
	return v
}
func (c *fakeConfigContainer) Int(key string) (int, error) {
	return strconv.Atoi(c.getData(key))
}
func (c *fakeConfigContainer) DefaultInt(key string, defaultval int) int {
	v, err := c.Int(key)
	if err != nil {
		return defaultval
	}
	return v
}
func (c *fakeConfigContainer) Int64(key string) (int64, error) {
	return strconv.ParseInt(c.getData(key), 10, 64)
}
func (c *fakeConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
	v, err := c.Int64(key)
	if err != nil {
		return defaultval
	}
	return v
}
func (c *fakeConfigContainer) Bool(key string) (bool, error) {
	return ParseBool(c.getData(key))
}
func (c *fakeConfigContainer) DefaultBool(key string, defaultval bool) bool {
	v, err := c.Bool(key)
	if err != nil {
		return defaultval
	}
	return v
}
func (c *fakeConfigContainer) Float(key string) (float64, error) {
	return strconv.ParseFloat(c.getData(key), 64)
}
func (c *fakeConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
	v, err := c.Float(key)
	if err != nil {
		return defaultval
	}
	return v
}
func (c *fakeConfigContainer) DIY(key string) (interface{}, error) {
	if v, ok := c.data[strings.ToLower(key)]; ok {
		return v, nil
	}
	return nil, errors.New("key not find")
}
func (c *fakeConfigContainer) GetSection(section string) (map[string]string, error) {
	return nil, errors.New("not implement in the fakeConfigContainer")
}
func (c *fakeConfigContainer) GetMap(key string) (map[string]interface{}, error) {
	return nil, errors.New("not implement in the fakeConfigContainer")
}
func (c *fakeConfigContainer) SaveConfigFile(filename string) error {
	return errors.New("not implement in the fakeConfigContainer")
}
var _ Configer = new(fakeConfigContainer)