package push type Message struct { Content string `json:"msg_content"` Title string `json:"title"` ContentType string `json:"content_type"` //Extras map[string]string `json:"extras"` } func (this *Message) SetContent(c string) { this.Content = c } func (this *Message) SetTitle(title string) { this.Title = title } func (this *Message) SetContentType(t string) { this.ContentType = t } //func (this *Message) AddExtras(key, value string) { // if this.Extras == nil { // this.Extras = make(map[string]string) // } // this.Extras[key] = value //}