main
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>登录系统</title>
</head>
<form id="1" action ="denlv.jsp" method="get">
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br>
身份:
<select size ="1"name="calss">
<option value ="学生" selected>学生</option>
<option value ="教师" >教师</option>
<option value ="管理员" >管理员</option>
</select>
<br><br>
账号:
<input type="text" name="num"size="15"/>
<br><br>
密码:
<input type="password" name="pass"size="16"/>
<br><br>
<br><br>
<input type="submit" value="登录"/>
<input type="reset" value="重置"/>
</p>
</form>
</html>
denlu
<%@page import="aD.Ac"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>登录处理</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String calss=(String)request.getParameter("calss");
session.setAttribute("calss", calss);
String num=(String)request.getParameter("num");
session.setAttribute("num", num);
String pass=(String)request.getParameter("pass");
session.setAttribute("pass", pass);
if(util.queryEmpty(num, pass)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else if(util.inquiryNumber(num,calss)){
out.print("<script language ='javaScript'> alert('未查询到改账号');window.history.back(-1); </script>");
}else if(util.denlv(calss, num, pass)){
out.print("<script language ='javaScript'> alert('密码错误');window.history.back(-1); </script>");
}else{
out.print("<script language='javaScript'> alert('登录成功');</script>");
if(calss.equals("教师")){
response.setHeader("refresh", "0;url=teacher.jsp");
}else if(calss.equals("学生")){
response.setHeader("refresh", "0;url=student.jsp");
}else if(calss.equals("管理员")){
response.setHeader("refresh", "0;url=contrul.jsp");
}
}
%>
</body>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>教师系统</title>
</head>
<p style="text-align:center;color:black;font-family:宋体,serif; font-size:20px">
<a>管理员</a>
<br>
<br><br>
<input type="button" value="添加教师" onclick="location.href='NewTeacher.jsp'" />
<br><br>
<input type="button" value="添加学生" onclick="location.href='addStudent.jsp'" />
<br><br>
<input type="button" value="登出" onclick="location.href='main.jsp'" />
</p>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>教师系统</title>
</head>
<p style="text-align:center;color:black;font-family:宋体,serif; font-size:20px">
<a>管理员</a>
<br>
<br><br>
<input type="button" value="添加教师" onclick="location.href='NewTeacher.jsp'" />
<br><br>
<input type="button" value="添加学生" onclick="location.href='addStudent.jsp'" />
<br><br>
<input type="button" value="登出" onclick="location.href='main.jsp'" />
</p>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>添加教师</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String calss="学生";
String num=(String)request.getParameter("num");
String name=(String)request.getParameter("name");
String sex=(String)request.getParameter("sex");
String banji=(String)request.getParameter("banji");
String zhuanye=(String)request.getParameter("zhuanye");
if(util.query(num)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else if(util.numCha(num)){
out.print("<script language ='javaScript'> alert('学号必须为8位，且必须是数字');window.history.back(-1); </script>");
}else if(util.queryTeacherxiu(name, sex, banji, zhuanye)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else if(util.addStudentNum(num)){
out.print("<script language ='javaScript'> alert('学号重复');window.history.back(-1); </script>");
}else{
util.addStudent(calss, num, name, sex, banji, zhuanye);
out.print("<script language='javaScript'> alert('添加成功');</script>");
response.setHeader("refresh", "0;url=contrul.jsp");
}
%>
</body>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>添加教师</title>
</head>
<form id="1" action ="NewTeacherback.jsp" method="get">
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br>
工号:
<input type="text" name="num"size="15"/>
<br><br>
姓名:
<input type="text" name="name"size="15"/>
<br><br>
性别:
<input type="text" name="sex"size="15"/>
<br><br>
学院:
<input type="text" name="yuan"size="15"/>
<br><br>
职称:
<select size ="1"name="zhichen">
<option value ="教授" selected>教授</option>
<option value ="副教授">副教授</option>
<option value ="讲师" >讲师</option>
<option value ="助教" >助教</option>
</select>
<br><br>
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
<br><br>
<input type="submit" value="确认"/>
<input type="reset" value="重置"/>
</p>
</form>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>添加教师</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String calss="教师";
String num=(String)request.getParameter("num");
String name=(String)request.getParameter("name");
String sex=(String)request.getParameter("sex");
String yuan=(String)request.getParameter("yuan");
String zhichen=(String)request.getParameter("zhichen");
if(util.query(num)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else if(util.numCha(num)){
out.print("<script language ='javaScript'> alert('工号必须为8位，且必须是数字');window.history.back(-1); </script>");
}else if(util.queryTeacherxiu(name, sex, yuan, zhichen)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else if(util.addTeacherNum(num)){
out.print("<script language ='javaScript'> alert('工号重复');window.history.back(-1); </script>");
}else{
util.addTeaher(calss, num, name, sex, yuan, zhichen);
out.print("<script language='javaScript'> alert('添加成功');</script>");
response.setHeader("refresh", "0;url=contrul.jsp");
}
%>
</body>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>学生系统</title>
</head>
<p style="text-align:center;color:black;font-family:宋体,serif; font-size:20px">
<a>学生系统</a>
<br>
<br><br>
<input type="button" value="修改个人信息" onclick="location.href='student-resive.jsp'" />
<br><br>
<input type="button" value="浏览课程" onclick="location.href='Swatch-c.jsp'" />
<br><br>
<input type="button" value="选课" onclick="location.href='xuanke.jsp'" />
<br><br>
<input type="button" value="修改密码" onclick="location.href='sxiu.jsp'" />
<br><br>
<input type="button" value="登出" onclick="location.href='main.jsp'" />
</p>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>修改</title>
</head>
<body>
<table border="1"style="text-align:center">
<caption>学生信息</caption>
<tr>
<td align="center" width=3%>学号</td>
<td align="center" width=3%>姓名</td>
<td align="center" width=2%>性别</td>
<td align="center" width=2%>班级</td>
<td align="center" width=3%>专业</td>
</tr>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String num=session.getAttribute("num").toString();
try{
Connection connect = util.sjk();
Statement stmt = connect.createStatement();
ResultSet rs = stmt.executeQuery("select * from student");
while(rs.next()){
if(num.equals(rs.getObject(2).toString()))
{
%>
<tr>
<td width=3% align="center"><%=rs.getObject(2) %></td>
<td width=3% align="center"><%=rs.getObject(3) %></td>
<td width=2% align="center"><%=rs.getObject(4) %></td>
<td width=2% align="center"><%=rs.getObject(5) %></td>
<td width=3% align="center"><%=rs.getObject(6) %></td>
</tr>
<%
}
}
rs.close();
connect.close();
stmt.close();
}catch (SQLException e) {
e.printStackTrace();
}
%>
</table>
</body>
<form id="1" action ="student-resiveback.jsp" method="get">
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br>
姓名:
<input type="text" name="name"size="15"/>
<br><br>
性别:
<input type="text" name="sex"size="15"/>
<br><br>
班级:
<input type="text" name="banji"size="15"/>
<br><br>
专业:
<input type="text" name="zhuanye"size="15"/>
<br><br>
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
<br><br>
<input type="submit" value="修改"/>
<input type="reset" value="重置"/>
</p>
</form>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>修改信息</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String calss=session.getAttribute("calss").toString();
String num=session.getAttribute("num").toString();
String name=(String)request.getParameter("name");
String sex=(String)request.getParameter("sex");
String yuan=(String)request.getParameter("banji");
String zhichen=(String)request.getParameter("zhuanye");
String num1=num;
if(util.queryTeacherxiu(name, sex, yuan, zhichen)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else{
util.studentXiugai(calss, num, name, sex, yuan, zhichen, num1);
out.print("<script language='javaScript'> alert('修改成功');</script>");
response.setHeader("refresh", "0;url=student.jsp");
}
%>
</body>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>浏览</title>
</head>
<body>
<table border="1"style="text-align:center">
<caption>课程信息</caption>
<tr>
<td align="center" width=3%>课程编号</td>
<td align="center" width=3%>课程名字</td>
<td align="center" width=3%>教师</td>
</tr>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
try{
Connection connect = util.sjk();
Statement stmt = connect.createStatement();
ResultSet rs = stmt.executeQuery("select * from classim");
while(rs.next()){
%>
<tr>
<td width=3% align="center"><%=rs.getObject(1) %></td>
<td width=3% align="center"><a style="color:blue" href='classKan.jsp?id=<%=rs.getObject(1) %>'><%=rs.getObject(2)%></a></td>
<td width=3% align="center"><a style="color:blue" href='teacherKan.jsp?id=<%=rs.getObject(6) %>'><%=rs.getObject(4)%></a></td>
</tr>
<%
}
rs.close();
connect.close();
stmt.close();
}catch (SQLException e) {
e.printStackTrace();
}
%>
</table>
</body>
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
</p>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>修改</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<form id="1" action ="sxiuback.jsp" method="get">
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br>
输入旧密码:
<input type="text" name="jiu"size="15"/>
<br><br>
输入新密码:
<input type="text" name="xin"size="15"/>
<br><br>
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
<br><br>
<input type="submit" value="修改"/>
<input type="reset" value="重置"/>
</p>
</form>
</body>
</html>
<%@page import="aD.Ac"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>处理</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String calss="学生";
String num=session.getAttribute("num").toString();
String pass=session.getAttribute("pass").toString();
String jiu=(String)request.getParameter("jiu");
String xin=(String)request.getParameter("xin");
if(util.queryEmpty(jiu, xin)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else if(!pass.equals(jiu)){
out.print("<script language ='javaScript'> alert('旧密码错误');window.history.back(-1); </script>");
}else if(util.numCha(xin)){
out.print("<script language ='javaScript'> alert('新密码必须为8位，且必须是数字');window.history.back(-1); </script>");
}else{
util.XiuM(xin, num, calss);
out.print("<script language='javaScript'> alert('修改成功');</script>");
response.setHeader("refresh", "0;url=student.jsp");
}
%>
</body>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>教师系统</title>
</head>
<p style="text-align:center;color:black;font-family:宋体,serif; font-size:20px">
<a>教师系统</a>
<br>
<br><br>
<input type="button" value="添加课程" onclick="location.href='teacher-addclass.jsp'" />
<br><br>
<input type="button" value="修改个人信息" onclick="location.href='teacher-revise.jsp'" />
<br><br>
<input type="button" value="浏览选课学生信息" onclick="location.href='teacher-watch.jsp'" />
<br><br>
<input type="button" value="修改密码" onclick="location.href='Txiu.jsp'" />
<br><br>
<input type="button" value="登出" onclick="location.href='main.jsp'" />
</p>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>添加课程</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String num=session.getAttribute("num").toString();
String classnum=(String)request.getParameter("classnum");
String classname=(String)request.getParameter("classname");
String classmax=(String)request.getParameter("classmax");
String classteacher=session.getAttribute("name").toString();
String classnow="0";
if(util.queryTeacherAdd(classnum, classname,classmax)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else if(util.classnumCha(classnum)){
out.print("<script language ='javaScript'> alert('课程编号应为6位数字');window.history.back(-1); </script>");
}else if(util.classnumchong(classnum)){
out.print("<script language ='javaScript'> alert('课程编号已存在');window.history.back(-1); </script>");
}else if(util.pin(classmax)){
out.print("<script language ='javaScript'> alert('人数上限应为正整数');window.history.back(-1); </script>");
}else if(util.classxichong(classname, classteacher)){
out.print("<script language ='javaScript'> alert('课程重复,与您已有课程重复');window.history.back(-1); </script>");
}else{
util.inputClassT(classnum, classname, classmax, classteacher, classnow,num);
out.print("<script language='javaScript'> alert('添加成功');</script>");
response.setHeader("refresh", "0;url=teacher.jsp");
}
%>
</body>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>教师信息</title>
</head>
<body>
<table border="1"style="text-align:center">
<caption>教师信息</caption>
<tr>
<td align="center" width=2%>教师工号</td>
<td align="center" width=3%>教师姓名</td>
<td align="center" width=2%>教师性别</td>
<td align="center" width=3%>教师院系</td>
<td align="center" width=2%>教师职位</td>
</tr>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String a=request.getParameter("id");
try{
Connection connect = util.sjk();
Statement stmt = connect.createStatement();
ResultSet rs = stmt.executeQuery("select * from teacher");
while(rs.next()){
if(a.equals(rs.getObject(2).toString()))
{
%>
<tr>
<td width=2% align="center"><%=rs.getObject(2) %></td>
<td width=3% align="center"><%=rs.getObject(3) %></td>
<td width=2% align="center"><%=rs.getObject(4) %></td>
<td width=3% align="center"><%=rs.getObject(5) %></td>
<td width=2% align="center"><%=rs.getObject(6) %></td>
</tr>
<%
}
}
rs.close();
connect.close();
stmt.close();
}catch (SQLException e) {
e.printStackTrace();
}
%>
</table>
</body>
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
</p>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>修改</title>
</head>
<body>
<table border="1"style="text-align:center">
<caption>教师信息</caption>
<tr>
<td align="center" width=3%>工号</td>
<td align="center" width=3%>姓名</td>
<td align="center" width=2%>性别</td>
<td align="center" width=2%>学院</td>
<td align="center" width=3%>职称</td>
</tr>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String num=session.getAttribute("num").toString();
try{
Connection connect = util.sjk();
Statement stmt = connect.createStatement();
ResultSet rs = stmt.executeQuery("select * from teacher");
while(rs.next()){
if(num.equals(rs.getObject(2).toString()))
{
%>
<tr>
<td width=3% align="center"><%=rs.getObject(2) %></td>
<td width=3% align="center"><%=rs.getObject(3) %></td>
<td width=2% align="center"><%=rs.getObject(4) %></td>
<td width=2% align="center"><%=rs.getObject(5) %></td>
<td width=3% align="center"><%=rs.getObject(6) %></td>
</tr>
<%
}
}
rs.close();
connect.close();
stmt.close();
}catch (SQLException e) {
e.printStackTrace();
}
%>
</table>
</body>
<form id="1" action ="teacher-reviseback.jsp" method="get">
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br>
姓名:
<input type="text" name="name"size="15"/>
<br><br>
性别:
<input type="text" name="sex"size="15"/>
<br><br>
学院:
<input type="text" name="yuan"size="15"/>
<br><br>
职称:
<select size ="1"name="zhichen">
<option value ="教授" selected>教授</option>
<option value ="副教授">副教授</option>
<option value ="讲师" >讲师</option>
<option value ="助教" >助教</option>
</select>
<br><br>
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
<br><br>
<input type="submit" value="修改"/>
<input type="reset" value="重置"/>
</p>
</form>
</html>
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>修改信息</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String calss=session.getAttribute("calss").toString();
String num=session.getAttribute("num").toString();
String name=(String)request.getParameter("name");
String sex=(String)request.getParameter("sex");
String yuan=(String)request.getParameter("yuan");
String zhichen=(String)request.getParameter("zhichen");
String num1=num;
if(util.queryTeacherxiu(name, sex, yuan, zhichen)){
out.print("<script language ='javaScript'> alert('输入不能为空');window.history.back(-1); </script>");
}else{
util.teacherXiugai(calss, num, name, sex, yuan, zhichen, num1);
out.print("<script language='javaScript'> alert('修改成功');</script>");
response.setHeader("refresh", "0;url=teacher.jsp");
}
%>
</body>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>修改</title>
</head>
<body>
<table border="1"style="text-align:center">
<caption>学生选课情况</caption>
<tr>
<td align="center" width=3%>课程编号</td>
<td align="center" width=3%>课程名称</td>
<td align="center" width=3%>学生学号</td>
<td align="center" width=2%>学生姓名</td>
<td align="center" width=2%>学生性别</td>
<td align="center" width=3%>班级</td>
<td align="center" width=3%>专业</td>
</tr>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
String num=session.getAttribute("num").toString();
try{
Connection connect = util.sjk();
Statement stmt = connect.createStatement();
ResultSet rs = stmt.executeQuery("select * from xuanke");
while(rs.next()){
if(num.equals(rs.getObject(2).toString()))
{
%>
<tr>
<td width=3% align="center"><%=rs.getObject(1) %></td>
<td width=3% align="center"><%=rs.getObject(3) %></td>
<td width=3% align="center"><%=rs.getObject(6) %></td>
<td width=2% align="center"><%=rs.getObject(7) %></td>
<td width=2% align="center"><%=rs.getObject(8) %></td>
<td width=3% align="center"><%=rs.getObject(9) %></td>
<td width=3% align="center"><%=rs.getObject(10) %></td>
</tr>
<%
}
}
rs.close();
connect.close();
stmt.close();
}catch (SQLException e) {
e.printStackTrace();
}
%>
</table>
<p style="text-align:center">
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
</p>
</body>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>修改</title>
</head>
<body>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<form id="1" action ="Txiuback.jsp" method="get">
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br>
输入旧密码:
<input type="text" name="jiu"size="15"/>
<br><br>
输入新密码:
<input type="text" name="xin"size="15"/>
<br><br>
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
<br><br>
<input type="submit" value="修改"/>
<input type="reset" value="重置"/>
</p>
</form>
</body>
</html>
<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>
<html>
<head>
<title>浏览</title>
</head>
<body>
<table border="1"style="text-align:center">
<caption>课程信息</caption>
<tr>
<td align="center" width=3%>课程编号</td>
<td align="center" width=3%>课程名字</td>
<td align="center" width=3%>课程详细信息</td>
<td align="center" width=3%>教师</td>
</tr>
<jsp:useBean id="util" class="aD.Ac" scope="page" />
<%
try{
Connection connect = util.sjk();
Statement stmt = connect.createStatement();
ResultSet rs = stmt.executeQuery("select * from classim");
while(rs.next()){
String a=rs.getObject(3).toString();
String b=rs.getObject(5).toString();
if(!a.equals(b))
{
%>
<tr>
<td width=3% align="center"><%=rs.getObject(1) %></td>
<td width=3% align="center"><%=rs.getObject(2) %></td>
<td width=3% align="center"><a style="color:blue" href='xuanke-back.jsp?id=<%=rs.getObject(1) %>'>课程详细信息</a></td>
<td width=3% align="center"><%=rs.getObject(4) %></td>
</tr>
<%
}
}
rs.close();
connect.close();
stmt.close();
}catch (SQLException e) {
e.printStackTrace();
}
%>
</table>
</body>
<p style="text-align:center;color:black;font-family:楷体; font-size:20px">
<br><br>
<input type="button" value="返回上一页" onclick="javascript:history.back(-1)" />
</p>
</html>有人教的
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