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html+css+js 学生信息管理系统

需求：Web前端开发技术完成管理系统后台管理功能，主要包括用户登录、系统主界面(要求直接跳转到用户管理界面，可选做一个系统后台管理主界面，用户管理作为主界面下的某个子功能，)并实现一个具体功能增、删、改的界面设计。

1.用户登录

输入账号、密码。如果账号和密码验证通过，则打开主界面，否则提示错误。

界面要求

  1. 账号，要求长度在6-20个字符。
  2. 密码，要求长度在5-15个字符。
  3. 按钮，登录，类型submit。
  4. 要求采用表单提交。

功能要求

点击“登录”按钮，根据规则验证输入的账号和密码，都是必填项，有长度限制。根据自己的情况，可以设定一个默认的账号和密码作为验证通过的数据，如账号jxf123，密码为Test_001。

  1. 表单中action值为user.html。
  2. 表单method="post"。

1.html 代码

<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <title>用户登录</title>
 
</head>

<body>
  <form action="user.html" name="form1" onsubmit="return check();" method="post">
    <div class="user">
      <input type="text" name="name" placeholder="用户名" pattern="^[a-zA-Z0-9_-]{6,16}$"  value="jxf123"/>
      <input type="password" name="password" placeholder="密码" pattern="^[a-zA-Z0-9_-]{5,15}$" value="Test_001" />
    </div>
    <div class="footer">
      <div></div>
      <input type="submit" name="submit" value="登录" class="btn" formaction="main.html" />
      <input type="submit" name="submit" value="注册" class="btn" formaction="register.html" />
    </div>
  </form>
</body>

</html>

login 登入页面 css 样式

body {
  /* 设置背景图片不平铺、水平垂直居中、固定不动 */
  background: url(../images/1.jpg) no-repeat center center fixed;
  /* 保持图像本身的宽高比例，将图片缩放到正好完全覆盖定义背景的区域。*/
  background-size: cover;
  padding-top: 20px;
}

form {
  width: 343px;
  height: 200px;
  margin: 0 auto;
  border: 1px solid rgba(0, 0, 0, 1);
  border-radius: 5px;
  /* 隐藏溢出内容 */
  overflow: hidden;
  text-align: center;
}

input {
  width: 300px;
  height: 30px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 4px;
  margin-bottom: 10px;
}

.user {
  padding-top: 40px;
}

.footer input {
  width: 50px;
  height: 34px;
}

/* 当光标放到按钮上时，鼠标指针为一只小手形状 */
input[type=submit] {
  cursor: pointer;
}

/* 当该input元素获得焦点时，设置背景颜色及盒阴影 */
input:focus {
  background-color: rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.btn {
  border-radius: 4px;
  border-radius: 6px;
}

/* 当鼠标悬浮在该元素时，设置背景颜色 */
.btn:hover {
  background: rgba(0, 0, 0, 0.2);
}

2.注册页面

    <form class="contact_form" action="#" method="post">
      <ul>
        <li class="usually">
          <h2>用户注册</h2>
        </li>
        <li class="usually">
          <span>昵称:</span>
          <input type="text" id="name" name="name" autocomplete="off" required pattern="^[a-zA-Z0-9_-]{6,16}$" />
        </li>
        <li class="usually">
          <span>注册邮箱:</span>
          <input type="email" name="email" autocomplete="off" placeholder="[email protected]" required />
        </li>
        <li class="usually">
          <span>密码:</span>
          <input type="password" name="password" required />
        </li>
        <li class="special">
          <span>性别:</span>
          <input type="radio" name="sex" id="male" checked />
          <label for="male">男</label>
          <input type="radio" name="sex" id="female" />
          <label for="female">女</label>
        </li>
        <li class="usually">
          <span>年龄:</span>
          <input type="number" name="age" required />
        </li>
        <li class="special">
          <span>兴趣爱好:</span>
          <input type="checkbox" id="football" name="interest" />
          <label for="football">足球</label>
          <input type="checkbox" id="basketball" name="interest" />
          <label for="basketball">蓝球</label>
          <input type="checkbox" id="swim" name="interest" />
          <label for="swim">游泳</label>
          <input type="checkbox" id="sing" name="interest" />
          <label for="sing">唱歌</label>
          <input type="checkbox" id="run" name="interest" />
          <label for="run">跑步</label>
          <input type="checkbox" id="yoga" name="interest" />
          <label for="yoga">瑜伽</label>
        </li>
        <li class="usually">
          <span>自我介绍:</span>
          <textarea rows="10" cols="200" name="introduction" placeholder="Please enter your message" class="message"
            required></textarea>
        </li>
        <li>
          <input class="submit" type="submit" value="立即注册" />
        </li>
      </ul>
    </form>

注册页面 css样式

.contact_form {
  width: 70%;
  margin: 0 auto;
}

.contact_form ul {
  width: 750px;
  list-style: none;
  /* 清除默认样式 */
  margin: 0px;
  padding: 0px;
}

.contact_form li {
  padding: 12px;
  border-bottom: 1px solid #eee;
}

/* 给类名为contact_form的元素的第一个子元素li和最后一个子元素li加底部边框 */
.contact_form li:first-child,
.contact_form li:last-child {
  border-bottom: 1px solid #777;
}

.contact_form span {
  width: 150px;
  /* 把块元素强制转换为行内块元素 */
  display: inline-block;
}

/* 给类名为usually的元素下的input标签定义宽高和内边距 */
.usually input {
  height: 20px;
  width: 220px;
  padding: 5px 8px;
}

/* 该元素获得焦点时，不出现虚线框（或高亮框）*/
*:focus {
  outline: none;
}

/* 给类名为usually的元素下的input和textarea标签设置背景图片、内阴影和边框圆角 */
.usually input,
.usually textarea {
  background: url(../images/attention.png) no-repeat 98% center;
  box-shadow: 0 10px 15px #eee inset;
  border-radius: 2px;
}

.contact_form textarea {
  padding: 8px;
  width: 300px;
}

/* 当该元素获得焦点时，设置背景颜色为白色 */
.usually input:focus,
.usually textarea:focus {
  background: #fff;
}

/* 设置按钮的样式 */
input[type=submit] {
  margin-left: 156px;
  background-color: #68b12f;
  border: 1px solid #509111;
  border-radius: 3px;
  color: white;
  /* 内边距：上下6px、左右20px */
  padding: 6px 20px;
  /* 文本对齐方式：水平居中 */
  text-align: center;
}

/* 当鼠标悬停在提交按钮时，该按钮背景颜色透明度为0.85，光标变成小手 */
input[type=submit]:hover {
  opacity: .85;
  cursor: pointer;
}

/* 当该元素获得焦点填写内容无效时，设置警告背景图片 */
.usually input:focus:invalid,
.usually textarea:focus:invalid {
  background: url(../images/warn.png) no-repeat 98% center;
  box-shadow: 0 0 5px #d45252;
}

/* 当该元素获取有效的填写内容时，设置正确背景图片 */
.usually input:required:valid,
.usually textarea:required:valid {
  background: url(../images/right.png) no-repeat 98% center;
  box-shadow: 0 0 5px #5cd053;
}
  1. 用户信息

用户信息可分两部分，第一部分：查询系统 输入姓名 手机号 查询

查询条件：姓名、手机号、状态（下拉选择框，取值为全部、启用、禁用）。

     <div>
            <div class ="adbt"> 
            <form action="#" method="get">
    <!-- 验证用户名 -->
    姓名：<input name="user_name" required placeholder="请输入您的用户名" pattern="^[\u4e00-\u9fa5]{0,}$" />
    <!-- 验证11位手机号码 -->
   手机号：     <input name="user_phone" required placeholder="请输入您的手机号码" pattern="^(13[0-9]|14[5|7]|15[0|1|2|3|4|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$" />
>
    状态:<select size="1"> 
    <option>全部</option>
    <option>启用</option>
    <option>禁用</option>
    </select>
    <input type="submit" style="background-color:#C60; font-size:24px; padding:5px;"  value="学生信息查询" />
    </form> 
  </div>

第二部分：用户信息展示 数据区最上面 添加和删除信息

数据区最下面展示分页，包括上页、下页。

数据区展示项：复选框、序列号、学号、姓名、学院、专业、年级、班级、年龄、操作（包括功能：查看、修改）。要

用户信息展示 页面

<div id="adbt">
                <button class="gre" id="add">添加</button>
                <button class="red" id="delete">删除</button>

    
            </div>
            <table>
                <tbody>
                <tr id="thead">
                    <td><input type="checkbox"></td>
                    <td>序号</td>
                    <td>学号</td>
                    <td>姓名</td>
                    <td>学院</td>
                    <td>专业</td>
                    <td>年级</td>
                    <td>班级</td>
                    <td>年龄</td>
                    <td>操作</td>
                </tr>
                       </tbody>
            </table>
            <div id="navigate">
                <p>第<span id="pgn"></span>页,共<span id="en"></span>条 (每页最多显示10条)</p><!--Number of entries-->
                <div id="tpbt">
    
                    <button class="gre" id="lastpage">上一页</button>
                    <button class="red" id="nextpage">下一页</button>

                </div>
            </div>
        </div>
    </main>
</div>
<div id="sbg"></div><!--增删改查时的阴影背景-->
<div class="achaesi" id="asi">
<!--    <form action="" method="post">-->
    <h2>新增学生信息</h2>
    <div class="ifm">
        <div><label for="assn">学号</label> <input id="assn" type="text" placeholder="11503080201" required maxlength="11" pattern="^[0-9]{11}$" oninvalid="setCustomValidity('请输入11位的数字组合')"></div>
        <div><label for="asn">姓名</label> <input id="asn" type="text" placeholder="雷军" required minlength="2" maxlength="8" pattern="^[\u4e00-\u9fa5]+$" oninvalid="setCustomValidity('请输入正确的姓名')"></div>
        <div><label for="asac">学院</label> <input id="asac" type="text" placeholder="两江人工智能学院" required minlength="3" maxlength="10" pattern="^[\u4e00-\u9fa5]+$" oninvalid="setCustomValidity('请输入正确的学院名')"></div>
        <div><label for="asm">专业</label> <input id="asm" type="text" placeholder="软件工程" required minlength="3" maxlength="12" pattern="^[\u4e00-\u9fa5]+$" oninvalid="setCustomValidity('请输入正确的专业名')"></div>
        <div><label for="asg">年级</label> <input id="asg" type="text" placeholder="2015" required max="2020" maxlength="4" pattern="^[0-9]{4}$" oninvalid="setCustomValidity('请输入正确的年级')"></div>
        <div><label for="asc">班级</label> <input id="asc" type="text" placeholder="1" required maxlength="1"></div>
        <div><label for="asag">年龄</label> <input id="asag" type="number" placeholder="20" required min="0" maxlength="2" pattern="^[0-9]+$" oninvalid="setCustomValidity('请输入正确的年龄')"></div>
    </div>
    <hr/>
    <div class="scbt">
        <button type="submit" id="submit">提交</button>
        <button class="cancel">取消</button>
    </div>
<!--    </form>-->
</div>
<div class="achaesi" id="chasi">
<!--    <form action="" method="post">-->
    <h2>修改学生信息</h2>
    <div class="ifm">
        <div><label for="chassn">学号</label> <input id="chassn" type="text" readonly required maxlength="11" pattern="^[0-9]{11}$" oninvalid="setCustomValidity('请输入11位的数字组合')"></div>
        <div><label for="chasn">姓名</label> <input id="chasn" type="text" required minlength="2" maxlength="8" pattern="^[\u4e00-\u9fa5]+$" oninvalid="setCustomValidity('请输入正确的姓名')"></div>
        <div><label for="chasac">学院</label> <input id="chasac" type="text" required minlength="3" maxlength="10" pattern="^[\u4e00-\u9fa5]+$" oninvalid="setCustomValidity('请输入正确的学院名')"></div>
        <div><label for="chasm">专业</label> <input id="chasm" type="text" required minlength="3" maxlength="12" pattern="^[\u4e00-\u9fa5]+$" oninvalid="setCustomValidity('请输入正确的专业名')"></div>
        <div><label for="chasg">年级</label> <input id="chasg" type="text" required max="2020" maxlength="4" pattern=^[0-9]{4}$" oninvalid="setCustomValidity('请输入正确的年级')"></div>
        <div><label for="chasc">班级</label> <input id="chasc" type="text" required maxlength="1"></div>
        <div><label for="chasag">年龄</label> <input id="chasag" type="text" required min="0" maxlength="2" pattern="^[0-9]+$" oninvalid="setCustomValidity('请输入正确的年龄')"></div>
    </div>
    <hr/>
    <div class="scbt">
        <button type="submit" id="save">保存</button>
        <button class="cancel">取消</button>
    </div>
<!--    </form>-->
</div>
<div class="achaesi" id="chesi">
    <h2>查看学生信息</h2>
    <div class="ifm">
        <div><label for="chessn">学号</label> <input type="text" readonly id="chessn"></div>
        <div><label for="chesn">姓名</label> <input type="text" readonly id="chesn"></div>
        <div><label for="chesac">学院</label> <input type="text" readonly id="chesac"></div>
        <div><label for="chesm">专业</label> <input type="text" readonly id="chesm"></div>
        <div><label for="chesg">年级</label> <input type="text" readonly id="chesg"></div>
        <div><label for="chesc">班级</label> <input type="text" readonly id="chesc"></div>
        <div><label for="chesag">年龄</label> <input type="text" readonly id="chesag"></div>
    </div>
    <hr/>
    <div class="scbt">
        <button class="cancel">取消</button>
    </div>
</div>

用户信息展示 页面 css 

@charset "utf-8";
/* CSS Document */
* {
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
  color: red;
}
.sbg {
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: black;
  opacity: 0.4;
  z-index: 1;
}

body {background: url(../images/1.jpg) no-repeat center center fixed;

}
header {
  display: flex;
  flex-flow: row nowrap;
  justify-content: space-between;
}
header h1 {
  color: #9a9897;
}
header hr {
  margin: 20px 20px 0;
  background-color: #bc9470;
  border: 2px solid #bc9470;
  width: 30%;
  height: 0;
}
.adbt{ margin:0px auto; padding:20px;font-size:24px;  text-align:center;  }
.adbt input{ height:50px; border:dashed #CC3300 1px;}
.adbt h3 { margin:30px 20px;
  color: #9a9897;
}

main #adbt {
  margin-left: 70px;
}
main button {
  margin: 20px 5px;
  width: 85px;
  height: 40px;
  color: white;
}
main button.gre {
  background-color: #5cb85c;
}
main button.red {
  background-color: #d9534f;
}
main #navigate {
  padding: 0 70px;
  display: flex;
  flex-flow: row nowrap;
  justify-content: space-between;
}
main #navigate p {
  margin-top: 30px;
}
table {
  margin: 0 auto;
  width: 90%;
  text-align: center;
  border-spacing: 0;
}
table tbody tr:first-of-type {
  background-color: #dadee1 !important;
  height: 60px;
}
table tbody tr {
  height: 45px;
}
table tbody tr:nth-child(odd) {
  background-color: #eef1f8;
}
table tbody tr:nth-child(even) {
  background-color: #ffffff;
}
table tbody tr:not([id=thead]):hover {
  cursor: pointer;
  background-color: #e9e9e9;
}
.achaesi {
  display: none;
  position: absolute;
  top: 20%;
  left: 34%;
  background-color: white;
  z-index: 2;
  width: 500px;
  height: 420px;
}
.achaesi h2 {
  padding: 5px 20px;
  font-size: large;
  background-color: #555555;
  color: white;
}
.achaesi .ifm {
  width: 300px;
  margin: 10px auto;
  display: flex;
  flex-flow: column nowrap;
}
.achaesi .ifm div {
  margin: 10px;
}
.achaesi .ifm div input {
  width: 220px;
  height: 20px;
}
.achaesi .scbt {
  float: right;
  margin-top: 6px;
  margin-right: 30px;
}
.achaesi .scbt button:first-of-type {
  width: 85px;
  height: 36px;
  background-color: #5cb85c;
}
.achaesi .scbt button:last-of-type {
  width: 85px;
  height: 36px;
  background-color: white;
}
/*# sourceMappingURL=studentInformationManagementSystem.css.map */

用户信息展示 页面 js

// JavaScript Document
$(function () {
    let students = [{//初始界面数据
        schoolNumber: "11503080201",
        name: "雷军",//my idol
        academy: "两江人工智能学院",
        major: "软件工程",
        grade: 2019,
        class: 2,
        age: 20,
    }, {
        schoolNumber: "11503080202",
        name: "张三",
        academy: "计算机工程与技术学院",
        major: "计算机科学与技术",
        grade: 2019,
        class: 1,
        age: 19,
    }, {
        schoolNumber: "11503080203",
        name: "李四",
        academy: "会计学院",
        major: "会计学",
        grade: 2018,
        class: 3,
        age: 19,
    }, {
        schoolNumber: "11503080204",
        name: "王五",
        academy: "理学院",
        major: "应用物理",
        grade: 2017,
        class: 3,
        age: 21,
    }, {
        schoolNumber: "11503080204",
        name: "赵六",
        academy: "会计学院",
        major: "金融学",
        grade: 2017,
        class: 3,
        age: 21,
    }, {
        schoolNumber: "11503080202",
        name: "张三",
        academy: "计算机工程与技术学院",
        major: "计算机科学与技术",
        grade: 2019,
        class: 1,
        age: 19,
    }, {
        schoolNumber: "11503080203",
        name: "李四",
        academy: "会计学院",
        major: "会计学",
        grade: 2018,
        class: 3,
        age: 19,
    }, {
        schoolNumber: "11503080204",
        name: "王五",
        academy: "理学院",
        major: "应用物理",
        grade: 2017,
        class: 3,
        age: 21,
    }, {
        schoolNumber: "11503080204",
        name: "赵六",
        academy: "会计学院",
        major: "金融学",
        grade: 2017,
        class: 3,
        age: 21,
    }, {
        schoolNumber: "11503080202",
        name: "张三",
        academy: "计算机工程与技术学院",
        major: "计算机科学与技术",
        grade: 2019,
        class: 1,
        age: 19,
    }, {
        schoolNumber: "11503080203",
        name: "李四",
        academy: "会计学院",
        major: "会计学",
        grade: 2018,
        class: 3,
        age: 19,
    }, {
        schoolNumber: "11503080204",
        name: "王五",
        academy: "理学院",
        major: "应用物理",
        grade: 2017,
        class: 3,
        age: 21,
    }, {
        schoolNumber: "11503080204",
        name: "赵六",
        academy: "会计学院",
        major: "金融学",
        grade: 2017,
        class: 3,
        age: 21,
    }];
    let page = 1;//第几页
    let no = 0;//显示的页数的第一个对象是数组中的第几个对象，初始下标为0
    let stuNumber = students.length;
    for (let i = 0; i < 10; i++) {//初始页面信息显示
        let student = $("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (i + 1) + "</td>" + "<td>" + students[i].schoolNumber + "</td>" + "<td>" + students[i].name + "</td>" + "<td>" + students[i].academy + "</td>" + "<td>" + students[i].major + "</td>" + "<td>"
            + students[i].grade + "</td>" + "<td>" + students[i].class + "</td>" + "<td>" + students[i].age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</label></tr>");
        $("tbody").append(student);
    }
    $("tbody").trigger("create");//trigger() 方法触发被选元素上指定的事件以及事件的默认行为（比如表单提交）
    $("#pgn").text(page);
    $("#en").text(stuNumber);
    $("#add").click(function () {//点击新增按钮触发的动作
        $("#sbg").addClass("sbg");
        $("#asi").show();
    });
 
    let objKeys = ["schoolNumber", "name", "academy", "major", "grade", "class", "age"];
    $("#submit").click(function () {//提交按钮点击触发的动作
        let student = {};
        let isEmpty = false;
        $("#asi").find("input").each(function (index, domEle) {
            if (!domEle.value) {//如果添加时表单内有值为空，则不进行添加
                isEmpty = true;
                /*return;*/
            }
            student[objKeys[index]] = domEle.value;
        });
        if (!isEmpty) {
            students[stuNumber] = student;
            stuNumber++;
            $("#en").text(stuNumber);
            /*$("#sbg").removeClass("sbg");
            $("#asi").hide();*/
            // $("tbody tr:first").siblings().remove();//清空界面
            let lpren = $("tbody tr").length - 1;//最后一页剩余的条目数;
            if (no + 10 > stuNumber && lpren < 10) {//增加一个append函数，如果显示的是最后一页那么需要更新界面。
                $("tbody tr:last").after("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (no + lpren + 1) + "</td>" + "<td>" + student.schoolNumber + "</td>" + "<td>" + student.name + "</td>" + "<td>" + student.academy + "</td>" + "<td>" + student.major + "</td>" + "<td>"
                    + student.grade + "</td>" + "<td>" + student.class + "</td>" + "<td>" + student.age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</tr>");
                /*            let i = 0;
                            while (i < 10 && no + i < stuNumber) {
                                let student = $("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (no + i + 1) + "</td>" + "<td>" + students[no + i].schoolNumber + "</td>" + "<td>" + students[no + i].name + "</td>" + "<td>" + students[no + i].academy + "</td>" + "<td>" + students[no + i].major + "</td>" + "<td>"
                                    + students[no + i].grade + "</td>" + "<td>" + students[no + i].class + "</td>" + "<td>" + students[no + i].age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</tr>");
                                $("tbody").append(student);
                                i++;
                            }*/
            }
        }
        $("#sbg").removeClass("sbg");
        $("#asi").hide();
 
    });
 
    $("tbody").on("click", ".check", function () {//点击查看按钮触发的动作
        $("#sbg").addClass("sbg");
        $("#chesi").show();
        let stuIndex = $(this).parent().parent().find("td")[1].innerText - 1;
        // let i = 0;
        $("#chesi").find("input").each(function (index, domEle) {
            domEle.value = students[stuIndex][objKeys[index]];//index->i
        });
    });
 
    let modifyNumber;
    /* $(".modify").click(function () {//jQuery出现的新添加元素点击事件无效
         $("#sbg").addClass("sbg");
         $("#chasi").show();
         modifyNumber = $(this).parent().parent().find("td")[1].innerText - 1;
         let i = 0;
         $("#chasi").find("input").each(function (index, domEle) {
             domEle.value = students[modifyNumber][objKeys[i++]];
         });
     });*/
    $("tbody").on("click", ".modify", function () {//点击修改按钮触发的动作,解决了jQuery出现的新添加元素点击事件无效问题
        $("#sbg").addClass("sbg");
        $("#chasi").show();
        modifyNumber = $(this).parent().parent().find("td")[1].innerText - 1;
        let i = 0;
        $("#chasi").find("input").each(function (index, domEle) {
            domEle.value = students[modifyNumber][objKeys[i++]];
        });
    });
 
 
    $("#save").click(function () {//点击保存按钮触发的动作
        $("#chasi").find("input").each(function (index, domEle) {
            if (domEle.value)
                students[modifyNumber][objKeys[index]] = domEle.value;
        });
        $("tbody tr").eq(modifyNumber - no + 1).remove();
        $("tbody tr").eq(modifyNumber - no).after("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (modifyNumber - no + 1) + "</td>" + "<td>" + students[modifyNumber].schoolNumber + "</td>" + "<td>" + students[modifyNumber].name + "</td>" + "<td>" + students[modifyNumber].academy + "</td>" + "<td>" + students[modifyNumber].major + "</td>" + "<td>"
            + students[modifyNumber].grade + "</td>" + "<td>" + students[modifyNumber].class + "</td>" + "<td>" + students[modifyNumber].age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</tr>");
        /*$("tbody tr:first").siblings().remove();//清空界面
        for (let i = no; i < no+10; i++) {//初始页面信息显示
            let student = $("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (i + 1) + "</td>" + "<td>" + students[i].schoolNumber + "</td>" + "<td>" + students[i].name + "</td>" + "<td>" + students[i].academy + "</td>" + "<td>" + students[i].major + "</td>" + "<td>"
                + students[i].grade + "</td>" + "<td>" + students[i].class + "</td>" + "<td>" + students[i].age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</tr>");
            $("tbody").append(student);
        }
        $("tbody").trigger("create");*/
        $("#sbg").removeClass("sbg");
        $("#chasi").hide();
    });
 
 
    $(".cancel").click(function () {//多个取消按钮点击触发的动作
        $("#sbg").removeClass("sbg");
        $(".achaesi").hide();
    });
 
    $("tbody tr td:first").click(function () {//全选操作用到了JQuery的隐示迭代
        $("tbody tr td input").prop("checked", $("tbody tr:first td:first input").prop("checked"));
    });
 
    $("tbody").on("click", $("tbody tr:nth-of-type(1)").siblings().find("input"), function () {
        let isSelectAll = true;
        $("tbody tr:nth-of-type(1)").siblings().find("input").each(function (index, domEle) {
            if ($(domEle).prop("checked") == false)
                isSelectAll = false;
        });
        $("tbody tr:first td:first input").prop("checked", isSelectAll);
    })
 
    let update = (no) => {
        let i = 0;//用于增加信息条目的变量;
        $("tbody tr:first").siblings().remove();//清空界面
        while (i < 10 && no + i < stuNumber) {
            let student = $("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (no + i + 1) + "</td>" + "<td>" + students[no + i].schoolNumber + "</td>" + "<td>" + students[no + i].name + "</td>" + "<td>" + students[no + i].academy + "</td>" + "<td>" + students[no + i].major + "</td>" + "<td>"
                + students[no + i].grade + "</td>" + "<td>" + students[no + i].class + "</td>" + "<td>" + students[no + i].age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</tr>");
            $("tbody").append(student);
            i++;
        }
        $("tbody").trigger("create");
    }
 
    $("#delete").click(function () {
        if (confirm("确认要删除这些信息吗？")) {
            let delNumber = 0;//删除的信息条目数;
            let delIndexs = []; //删除信息条目的下标;用于后期处理避免“落空”导致移动无效
            // let i = 0;//用于增加信息条目的变量;
            $("tbody tr td input").each(function (index, domEle) {
                if (index != 0 && $(domEle).prop("checked")) {//index != 0,防止标题行被删除
                    delIndexs[delIndexs.length] = $(domEle).parent().next().text() - 1;
                    $(domEle).parent().parent().remove();
                    delNumber++;
                }
            });
 
            for (let j = delIndexs.length - 1; j >= 0; j--) {
                for (let k = delIndexs[j]; k < stuNumber - 1; k++) {//低效的代码，需要大量移动对象索引;对JS不太熟悉，还没有想到高效的解决办法!
                    students[k] = students[k + 1];
                }
            }
 
            stuNumber -= delNumber;//指向储存底层数据(学生对象)的数组尾部的指针“移动”
            $("#en").text(stuNumber);//更新条目数
            if (stuNumber == no) {
                no -= 10;
                page--;
                $("#pgn").text(page);
            }
            update(no);
            /*            $("tbody tr:first").siblings().remove();//清空界面
                        while (i < 10 && no + i < stuNumber) {
                            let student = $("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (no + i + 1) + "</td>" + "<td>" + students[no + i].schoolNumber + "</td>" + "<td>" + students[no + i].name + "</td>" + "<td>" + students[no + i].academy + "</td>" + "<td>" + students[no + i].major + "</td>" + "<td>"
                                + students[no + i].grade + "</td>" + "<td>" + students[no + i].class + "</td>" + "<td>" + students[no + i].age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</tr>");
                            $("tbody").append(student);
                            i++;
                        }
                        $("tbody").trigger("create");*/
            $("tbody tr td:first input").prop("checked", false);
        }
    });
 
    $("#nextpage").click(function () {
        if (no + 10 < stuNumber) {
            no += 10;
            page++;
            $("#pgn").text(page);
            update(no);
            $("tbody tr:first td:first input").prop("checked", false);
            /*let i = 0;//用于增加信息条目的变量;
            $("tbody tr:first").siblings().remove();//清空界面
            while (i < 10 && no + i < stuNumber) {
                let student = $("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (no + i + 1) + "</td>" + "<td>" + students[no + i].schoolNumber + "</td>" + "<td>" + students[no + i].name + "</td>" + "<td>" + students[no + i].academy + "</td>" + "<td>" + students[no + i].major + "</td>" + "<td>"
                    + students[no + i].grade + "</td>" + "<td>" + students[no + i].class + "</td>" + "<td>" + students[no + i].age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</tr>");
                $("tbody").append(student);
                i++;
            }
            $("tbody").trigger("create");*/
        } else {
            alert("已经是最后一页。");
        }
    });
 
    $("#lastpage").click(function () {
        if (no - 10 >= 0) {
            no -= 10;
            page--;
            $("#pgn").text(page);
            update(no);
            $("tbody tr:first td:first input").prop("checked", false);
            /*            let i = 0;//用于增加信息条目的变量;
                        $("tbody tr:first").siblings().remove();//清空界面
                        while (i < 10 && no + i < stuNumber) {
                            let student = $("<tr>" + "<td><input type=\"checkbox\"></td>" + "<td>" + (no + i + 1) + "</td>" + "<td>" + students[no + i].schoolNumber + "</td>" + "<td>" + students[no + i].name + "</td>" + "<td>" + students[no + i].academy + "</td>" + "<td>" + students[no + i].major + "</td>" + "<td>"
                                + students[no + i].grade + "</td>" + "<td>" + students[no + i].class + "</td>" + "<td>" + students[no + i].age + "</td>" + "<td><a href=\"javascript:;\" class=\"check\">查看</a> <a href=\"javascript:;\" class=\"modify\">修改</a></td>" + "</tr>");
                            $("tbody").append(student);
                            i++;
                        }
                        $("tbody").trigger("create");*/
        } else {
            alert("已经是第一页。");
        }
    });
 
})
标签： html javascript 前端
本文转载自: https://blog.csdn.net/jinxiaofei8/article/details/124922591
版权归原作者 小飞766 所有， 如有侵权，请联系我们删除。
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