src/org/nutz/dao/Cnd.java
public OrderBy orderBy(String name, String dir) {
        if ("asc".equalsIgnoreCase(dir)) {
            this.asc(name);
        } else {
            this.desc(name);
        }
        return this;
    }
public OrderBy orderBy(String name, String dir) {
        if ("asc".equalsIgnoreCase(dir)) {
            this.asc(name);
        } else {
            this.desc(name);
        }
        return this;
    }
当dir为asc时判断为升序,否则判定为降序. cnd.orderBy("age", "asc")
@param name Java属性/字段属性
@param dir asc或其他
@return OrderBy实例,事实上就是当前对象