add 添加通用接口

gssong

2024-05-31 c84f24fe209dda159b48b428c8f4bf2e4e45b540

 ruoyi-common/ruoyi-common-mybatis/src/main/java/org/dromara/common/mybatis/core/page/PageQuery.java

@@ -111,4 +111,8 @@
        return list;
    }

    public Integer getFirstNum() {
        return (pageNum - 1) * pageSize;
    }

}