ini.go
func (c *Config) Get(section, key string) string {
	for _, sect := range c.sections {
		if sect.name == section {
			for _, opt := range sect.options {
				if opt.name == key {
					return opt.value
				}
			}
			return ""
		}
	}
	return ""
}
func (c *Config) Get(section, key string) string {
	for _, sect := range c.sections {
		if sect.name == section {
			for _, opt := range sect.options {
				if opt.name == key {
					return opt.value
				}
			}
			return ""
		}
	}
	return ""
}
// Get gets the value from the specified section and key name, or the empty
// string if either the section or the key is missing.