找到了

// 根据特定条件更新特定字段
dao.update(Person.class, Chain.make("dead",true), Cnd.where("age",">",150));
// 常用的+1更新
dao.update(Person.class, Chain.makeSpecial("age", "+1").add("location", "yvr"), Cnd.where("name","=", "wendal"));