@PostMapping("/stu/selQuery") public R selList(@RequestBody StuVo stuVo){ Page<Student> p = new Page<>(stuVo.getCurrentPage(), stuVo.getPageSize()); QueryWrapper queryWrapper =new QueryWrapper(); if (stuVo.getId() != null){ queryWrapper.eq("id", stuVo.getId()); } if (stuVo.getName() !=null&&!"".equals(stuVo.getName())){ queryWrapper.like("name", stuVo.getName()); } Page<Student> studentPage = studentMapper.selectPage(p, queryWrapper); return R.succ(studentPage.getRecords(), p.getTotal()); }

stu-class.rar_be a stu_beautiful_https://stuclass_https://stucla

This program can be a beautiful program for the student profile of students days to record. Search and apply, and remove ... There.

安卓移动开发课程设计/Android期末大作业，安卓课程计算器设计 STU+源代码+文档说明

安卓移动开发课程设计/Android期末大作业，+源代码+文档说明 - 运行中有什么问题可以私聊博主，本人高级安卓工程师，主页置顶有常见爆红解决的方法，以及更多代码项目 ## 项目备注 1、该资源内项目代码都经过测试...

帮我看看下面的代码为啥有问题，并纠正：<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>学生信息</title> <script type="text/javascript"> function studentDelete(studentId) { if(confirm("你确定要删除这个学生信息吗？")){ windows.location="deletestudent?userId="+studentId; } } </script> </head> <body> 学号姓名性别出生年龄入学时间学院操作 <c:forEach items="${stuList} " var="stu"> ${stu.userId} ${stu.userName} ${stu.sex} ${stu.birthYear} ${stu.grad} ${stu.collegeName} <button type="button" onclick="Location='AdminServlet?action=edit$userId=${stu.userId}'">修改</button> <button type="button" onclick="studentDeLete(${stu.userId})">删除</button> </c:forEach> </body> </html>

这段代码有几个问题需要... <button type="button" onclick="studentDelete(${stu.userId})">删除</button> </td> </tr> </c:forEach> </table> </body> </html> 请注意检查其他部分的代码，以确保没有其他错误。

<?php $arr = array( array( 'stu_no'=>2011211, 'name'=>'张三', 'age' =>18, 'gender'=>'男' 'height'=>'175cm', 'weight'=>'65kg', 'email'=>'admin@163.com', 'colege'=>'土木工程学院', ), array( 'stu_no'=>2011212, 'name'=>'李四', 'age' =>18, 'gender'=>'男' 'height'=>'168cm' 'weight' =>'55kg' 'email'=>'admin@163.com' 'colege'=>'体育学院' ), array( 'stu_no'=>2011213, 'name'=>'王五', 'age' =>19, 'gender'=>'男' 'height'=>'165cm' 'weight' =>'44kg' 'email'=>'admin@163.com' 'colege'=>'数学学院' ) ) ?> <!DOCTYPE html> <html> <head> </head> <body> 学号姓名年龄性别身高体重邮箱学院 <?php foreach ($arr as $key => $value) {?> <?php echo $value['stu_no']; ?> <?php echo $value['name']; ?> <?php echo $value['age']; ?> <?php echo $value['gender']; ?> <?php echo $value['height']; ?> <?php echo $value['weight']; ?> <?php echo $value['email']; ?> <?php echo $value['colege']; ?> <?php } ?>

'stu_no' => 2011211, 'name' => '张三', 'age' => 18, 'gender' => '男', 'height' => '175cm', 'weight' => '65kg', 'email' => 'admin@163.com', 'college' => '土木工程学院', ), array( 'stu_no' =>...

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="java.util.,edu.nustti.dao.,edu.nustti.dao.impl.*" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>用户注册</title> </head> <body> <form action="/STU_manager/servlet/UserServlet?action=register" name="f1" method="post"> 用户名: <input type="text" name="userName"> 密码: <input type="password" name="password"> 姓名: <input type="text" name="trueName"> 性别: <input type="radio" checked="checked" name="sex" value="0">男 <input type="radio" name="sex" value="1">女生日: <select name="y"> <c:forEach begin="1990" end="2010" var="y"> <option value="${y}">${y}</option> </c:forEach> </select> <select name="m"> <c:forEach begin="1" end="9" var="m"> <option value="0${m}">${m}</option> </c:forEach> <c:forEach begin="10" end="12" var="m"> <option value="${m}">${m}</option> </c:forEach> </select> <select name="d"> <c:forEach begin="1" end="9" var="d"> <option value="0${d}">${d}</option> </c:forEach> <c:forEach begin="10" end="31" var="d"> <option value="${d}">${d}</option> </c:forEach> </select> 爱好: <% FavoritesDao dao1 = new FavoritesDaolmp1(); // 创建爱好存储业务模型 List list1 = dao1.getAllFavorates(); request.setAttribute("F", list1); %> <c:forEach var="f" items="${F}"> <input type="checkbox" name="favorates" value="${f.id }">${f.favorate} </c:forEach> 班级: <% ClassesDao dao2 =(ClassesDao) new ClassesDaoImpl(); // 创建班级存储业务模型 List list2 = dao2.getAllClasses(); request.setAttribute("C", list2); %><select name="classId"> <c:forEach var="c" items="${C}"> <option value="${c.id}">${c.className}</option> </c:forEach> </select> 介绍: <textarea rows="10" cols="20" name="introduction"></textarea> <input type="submit" value="注册"> </form> </body> </html>检查代码

其中包含了 JSTL 标签库的使用，用于生成动态的下拉列表和复选框。代码中还涉及到了 DAO 层的调用，用于从数据库中获取班级和爱好列表。需要注意的是，代码中的一些注释是中文的，最好修改为英文，以便更好地维护和...

//分析下面程序的功能。 #include <tuple> #include<string> #include <vector> #include<iostream> using namespace std; typedef tuple<string ,string ,int,string> Student; vector<Student> inputData() { Student stu; vector<Student>sv; for(int i=0;i<3 ;i++){ cout <<"输入学生数据:姓名、学号、年龄、专业"<< endl; cin >> get<0>(stu)>> get<1>(stu) >> get<2>(stu)>>get<3>(stu); sv.push_back(stu); } return sv; } void display(vector<Student> sv) { for(int j=0;j<3;j++){ cout << get<0>(sv[j])<< "\t" << get<1>(sv[j])<<"\t" << get<2>(sv[j])<<"\t" << get<3>(sv[j]) << endl; } } int main(){ vector<Student> s; s = inputData(); display(s); }

程序中的inputData函数用于从标准输入中读取3个学生信息，并将得到的每个学生信息存储在一个Student类型的对象stu中，最后将所有的学生信息存储在向量sv中，并返回向量sv。display函数用于显示向量中存储的所有学生...

ArrayList<Student> stu=new ArrayList<>()添加对象

可以使用以下代码向 ArrayList<Student> 对象中添加一个 Student 对象： Student s = new Student("John", 20); // 创建一个 Student 对象 stu.add(s); // 将该对象添加到 ArrayList<Student> 中其中，...

代码3：treeSet = new TreeSet<Student>(); 代码4：treeSet.add(stu); 代码5：Iterator<Student> te = tree.iterator(); 代码6：te.next();

代码4向TreeSet中添加一个Student对象stu。代码5创建了一个Iterator对象te，它可以用于依次访问TreeSet中的元素。代码6中的te.next()调用返回TreeSet中的下一个元素，因为我们没有将其赋值给任何变量，所以这个...

#include<iostream> using namespace std; class Student { private: int age=0; //年龄 string name="NoName"; //姓名 public: static int count; //静态成员，表示学生人数 Student(int a, string); Student() { //age = 0; //name = "NoName"; count++; }; ~Student() {}; void Print(); }; int Student::count = 0;//类外初始化 Student::Student(int a, string n) { this->age = a; this->name = n; } void Student::Print() { cout << "Name=" << this->name << ", " << "age=" << this->age << endl; } int main() { cout << "count=" << Student::count << endl; Student s1, * p = new Student(23, "ZhangHong"); //Student s1; Student *p=new Student(23,"ZhangHong"); s1.Print(); p->Print(); delete p; s1.Print(); Student Stu[4]; cout << "count=" << Student::count << endl; return 0; }

这段代码定义了一个学生类（Student），其中包含一个表示年龄的私有成员变量（age）、一个表示姓名的私有成员变量（name）和一个表示学生人数的静态成员变量（count）。类中定义了两个构造函数，一个是有参构造函数...

import java.util.*; public class TreeSetExample { public static void main(String args[ ]) { TreeSet<Student> mytree=new TreeSet<Student>(); for(int i=0;i<5;i++) { Scanner read=new Scanner(System.in); System.out.println("学生的姓名:"); String name=read.nextLine( ); System.out.println("输入分数(整数):"); int score=read.nextInt( ); 【代码1】 // 向mytree添加Student对象 } Iterator<Student> te=【代码2】 // mytree返回Iterator对象 while(【代码3】) // 判断te中是否存在元素 { Student stu=【代码4】 // 返回te中的下一个元素 System.out.println(""+stu.name+" "+stu.english); } } } class Student implements Comparable { int english=0; String name; Student(int e,String n) { english=e; name=n; } public int compareTo(Object b) { Student st=(Student)b; return (this.english-st.english); } }

代码1： java mytree.add(new Student(score, name));...Iterator<Student> te = mytree.iterator(); 代码3： java while(te.hasNext()) 代码4： java Student stu = te.next();

<button class="btn btn-lg btn-success btn-block" th:attr="uri=@{/stu/login}" onclick="send(0)" id="bt0">什么意思

<button class="btn btn-lg btn-success btn-block" th:attr="uri=@{/stu/login}" onclick="send(0)" id="bt0">什么意思? 这是一个HTML代码示例，其中包含一个按钮元素，具有类名为"btn btn-lg btn-success btn-...

$sql = "select * from stu"; foreach ($conn->query($sql) as $stu){ echo ""; echo "{$stu['user']}"; echo "{$stu['pwd']}"; echo "{$stu['xingBie']}"; echo "{$stu['dianHua']}"; echo "{$stu['banJi']}"; echo "删除"; echo ""; } ?>

首先，它使用一个SQL查询语句select * from stu查询出表stu中所有学生的信息，然后使用foreach循环遍历查询结果，将每一行学生信息展示在一个HTML的表格行<tr>中，表格中包含user、pwd、xingBie、...

补充下下面代码缺少部分 import java.util.*; class Student implements Comparable <Student> { String name; int age; public Student(String name, int age) { this.age = age; } public int compareTo(Student stu) { // 重写compareTo方法 // 两个Student对象相等，当且仅当二者的age相等 } } public class Main { public static void main(String args[ ]) { List <Student> list = new LinkedList <Student> ( ); Scanner sc = new Scanner(System.in); System.out.println("输入三个学生的信息："); list.add( new Student( sc.next(), sc.nextInt() ) ); list.add( new Student( sc.next(), sc.nextInt() ) ); list.add( new Student( sc.next(), sc.nextInt() ) ); Iterator <Student> it = ; System.out.println("排序前，链表中的数据："); while ( it.hasNext( ) ) { // 是否有下一个元素 Student stu = it.next( ); // 取出下一个元素 System.out.println( "姓名："+ stu.name + "，年龄：" + stu.age ); } //排序 System.out.println("排序后，链表中的数据："); it = list.iterator( ); while ( it.hasNext( ) ) { // 是否有下一个元素 Student stu = it.next( ); // 取出下一个元素 System.out.println( "姓名："+ stu.name + "，年龄：" + stu.age ); } System.out.println("输入要查找的学生信息："); Student stu4 = new Student( sc.next(), sc.nextInt() ); int index = Collections.binarySearch( list, stu4 ); //二分查找 if ( ) System.out.println( stu4.name + "与链表中的" + list.get(index).name + "年龄相同" ); else System.out.println( "链表中的对象，没有一个与" + stu4.name + "年龄相同的" ); } }

List<Student> list = new LinkedList<Student>(); Scanner sc = new Scanner(System.in); System.out.println("输入三个学生的信息："); list.add(new Student(sc.next(), sc.nextInt())); list.add(new ...

编辑中加号报错的原因

<a th:if="${#strings.hasText(stu.stuId)}" th:href="@{/adm/stu/{id}(id=${stu.stuId})}">编辑</a> 这会避免在stuId为空或非字符串时显示链接。如果stuId是数字，你应该先将其转换成字符串再拼接。

帮我改对#include<iostream> #include<fstream> #include<string> #include<vector> #include <algorithm> using namespace std; enum Grade { E=0,D,C,B,A }; class Student { public: int number; string name; double score; }; ostream& operator<<(ostream& out, Student& p) { return out; } bool compare(const Student& a, const Student& b) { return a.number < b.number; } void printVector(vector<Student>&students) { for (vector<Student>::iterator it = students.begin(); it != students.end(); it++) { cout << *it << " "; } cout << endl; } void test01() { vector<Student>students; printVector(students); } int main() { // 学生信息导入 ifstream infile; infile.open("student.txt",ios::in); if (!infile.is_open()) { cout << "文件打开失败" << endl; } vector<Student> students(27); char buf[] = { 0 }; while (infile>>buf) { cout << buf << endl; } infile.close(); // 成绩查询 int choice = 0; while (choice != 4) { cout << "请输入您要进行的操作：\n"; cout << "1. 按学号查询\n"; cout << "2. 按姓名查询\n"; cout << "3. 统计班级成绩\n"; cout << "4. 退出程序\n"; cin >> choice; if (choice == 1) { int number; cout << "请输入学号：\n"; cin >> number; auto it = find_if(students.begin(), students.end(), [number](const Student& s) { return s.number == number; }); if (it != students.end()) { cout << "学号\t姓名\t成绩\n"; cout << it->number << "\t" << it->name << "\t" << it->score << "\n"; } else { cout << "查无此人！\n"; } } else if (choice == 2) { string name; cout << "请输入姓名：\n"; cin >> name; auto it = find_if(students.begin(), students.end(), [name](const Student& s) { return s.name == name; }); if (it != students.end()) {

out << p.number << "\t" << p.name << "\t" << p.score << "\n"; 2. 在函数printVector(vector<Student>&students)中，你使用了迭代器，但是你没有在Student类中重载<<运算符，所以无法输出学生信息。你...

List<T> records = page.getRecords(); Set<String> sysUserIds = new HashSet<>(); records.forEach(item -> { sysUserIds.add(item.getCreateBy()); sysUserIds.add(item.getUpdateBy()); }); List<SysUserEntity> sysUserEntities = new ArrayList<>(); if (!sysUserIds.isEmpty()) { sysUserEntities = sysUserDao.selectList(new QueryWrapper<SysUserEntity>().eq("status", 1).in("work_no", sysUserIds)); } List<SysUserEntity> finalSysUserEntities = sysUserEntities; records.forEach(stu -> { finalSysUserEntities.forEach(sysUser -> { if (StringUtils.hasText(stu.getCreateBy()) && stu.getCreateBy().equals(String.valueOf(sysUser.getWorkNo()))) { stu.setCreateBy(sysUser.getRealName()); } if (StringUtils.hasText(stu.getUpdateBy()) && stu.getUpdateBy().equals(String.valueOf(sysUser.getWorkNo()))) { stu.setUpdateBy(sysUser.getRealName()); } }); });单元测试

Page<T> page = mock(Page.class); // 设置模拟的records列表 List<T> records = new ArrayList<>(); // 添加一些模拟数据 T record1 = mock(T.class); when(record1.getCreateBy()).thenReturn("user1"); ...

if (isset($_GET['cha'])) { $name = $_GET['name']; $sql = "select * from stu where user='$name'"; foreach ($conn->query($sql) as $stu) { echo ""; echo "{$stu['user']}"; echo "{$stu['pwd']}"; echo "{$stu['xingBie']}"; echo "{$stu['dianHua']}"; echo "{$stu['banJi']}"; echo ""; } }

接着使用一个SQL查询语句从数据库表stu中查询出所有user字段等于$name的行，使用foreach循环遍历查询结果，将每一行的学生信息展示在一个HTML的表格行<tr>中，表格中包含user、pwd、xingBie、...

重写package shiyan4_3; import java.awt.; import java.awt.event.; import java.util.; import javax.swing.; public class StudentFrame extends JFrame implements ActionListener { JTextArea showArea; JTextField inputName,inputScore; JButton button; TreeSet<Student> treeSet; StudentFrame() { treeSet = new TreeSet<Student>(); showArea=new JTextArea(); showArea.setFont(new Font("",Font.BOLD,20)); inputName=new JTextField(5); inputScore=new JTextField(5); button=new JButton("确定"); button.addActionListener(this); JPanel pNorth=new JPanel(); pNorth.add(new JLabel("Name:")); pNorth.add(inputName); pNorth.add(new JLabel("Score:")); pNorth.add(inputScore); pNorth.add(button); add(pNorth,BorderLayout.NORTH); add(showArea,BorderLayout.CENTER); setSize(300,320); setVisible(true); validate(); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } public void actionPerformed(ActionEvent e) { String name=inputName.getText(); int score=0; try{ score=Integer.parseInt(inputScore.getText().trim()); if(name.length()>0) { Student stu=new Student(name,score); treeSet.add(stu); // treeSet添加stu show(treeSet); } } catch(NumberFormatException exp) { inputScore.setText("请输入数字字符"); } } public void show(TreeSet tree) { showArea.setText(null); Iterator<Student> te = tree.iterator(); //获得Iterator对象te while(te.hasNext()) { Student stu=te.next(); // te返回其中的下一个元素 showArea.append("Name:"+stu.getName()+" Score: "+stu.getScore()+"\n"); } } public static void main(String args[]) { new StudentFrame(); } }

treeSet = new TreeSet<Student>(); showArea = new JTextArea(); showArea.setFont(new Font("", Font.BOLD, 20)); inputName = new JTextField(5); inputScore = new JTextField(5); button = new JButton(...

补全代码 <my-component : ="list" @ ="doDel"></my-component> <script> Vue.component('my-component', { props: ['stuList'], template: {{stu.name}} - {{stu.age}} <button @click="del(index)">删除</button> , methods: { del: function(value){ this. ('delid', ); } } }); var vm = new Vue({ el: '#box', data: { list: [ { name: '张三', age: 20 }, { name: '李四', age: 21 }, { name: '王五', age: 19 } ] }, methods: { doDel: function(value){ this.list.splice(value, 1); } } }) </script>

<my-component :stuList="list" @doDel="doDel"></my-component> </div> <script> Vue.component('my-component', { props: ['stuList'], template: <div> <ul> <li v-for="(stu,index) in stuList" :key=...

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stu-class.rar_be a stu_beautiful_https://stuclass_https://stucla

安卓移动开发课程设计/Android期末大作业，安卓课程计算器设计 STU+源代码+文档说明

ArrayList<Student> stu=new ArrayList<>()添加对象

代码3：treeSet = new TreeSet<Student>(); 代码4：treeSet.add(stu); 代码5：Iterator<Student> te = tree.iterator(); 代码6：te.next();

<button class="btn btn-lg btn-success btn-block" th:attr="uri=@{/stu/login}" onclick="send(0)" id="bt0">什么意思

$sql = "select * from stu"; foreach ($conn->query($sql) as $stu){ echo ""; echo "{$stu['user']}"; echo "{$stu['pwd']}"; echo "{$stu['xingBie']}"; echo "{$stu['dianHua']}"; echo "{$stu['banJi']}"; echo "删除"; echo ""; } ?>

编辑中加号报错的原因

if (isset($_GET['cha'])) { $name = $_GET['name']; $sql = "select * from stu where user='$name'"; foreach ($conn->query($sql) as $stu) { echo ""; echo "{$stu['user']}"; echo "{$stu['pwd']}"; echo "{$stu['xingBie']}"; echo "{$stu['dianHua']}"; echo "{$stu['banJi']}"; echo ""; } }

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