**①进入教材/杂费界面。** <img src="https://mima-h5.oss-cn-shenzhen.aliyuncs.com/cdn/user_guide/sell_center/%E6%95%99%E5%8A%A1%E4%B8%AD%E5%BF%83/%E6%95%99%E6%9D%90%E6%9D%82%E8%B4%B9/%E6%95%99%E6%9D%90%E6%9D%82%E8%B4%B9/1.png" > **②点击教材信息线上售卖栏的按钮可切换售卖或停售教材。**