vue2+elementUI完成添加学生删除学生案列

效果图：
在这里插入图片描述
点击添加学生按钮，弹出Di a log,收集用户信息：

el–table中自定义复选框，选中一行，可以点击删除

 代码区域：就一个HTML文件

&lt;!DOCTYPE html&gt;
<html lang="en"&gt;
<head&gt;
    <meta charset="UTF-8"&gt;
    <meta http-equiv="X-UA-Compatible" content="IE=edge"&gt;
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>学生列表</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
    <!-- 引入样式 -->
    <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
    <!-- 引入组件库 -->
    <script src="https://unpkg.com/element-ui/lib/index.js"></script>

</head>
<body>
    <div id="root">
        <el-button type="primary" @click="add">添加学生</el-button>
        <el-table
        :data="info"
        border
        style="width: 100%">
        <el-table-column
          width="200">
          <template slot-scope="scope">
            <!-- 复选框点击一个就全选的解决方案：
               <el-checkbox-group v-model="空数组">
                    <el-checkbox :label="scope.$index">
                </el-checkbox-group>
                不显示lable值,在checkbox标签内部加入<br>标签
             -->
            <el-checkbox-group v-model="che">
              <el-checkbox  v-model="formData.select" :label="scope.$index"><br></el-checkbox>
            </el-checkbox-group>
          </template>
        </el-table-column>
        <el-table-column
          prop="grade"
          label="班级"
          width="200">
        </el-table-column>
        <el-table-column
          prop="name"
          label="姓名"
          width="200">
        </el-table-column>
        <el-table-column
          prop="gender"
          label="性别"
          width="200">
        </el-table-column>
        <el-table-column
          prop="age"
          label="年龄">
        </el-table-column>
        <el-table-column
        label="操作">
        <template slot-scope="scope">
          <el-button type="primary" @click="handledelete(scope.$index)">删除学生</el-button>
        </template>
      </el-table-column>
      </el-table>
      <!-- 弹框 -->
      <el-dialog
        title="用户填写"
        :visible.sync="dialogVisible"
        width="30%"
        :before-close="handleClose">
        <el-form :model="formData" ref="resetForm" :rules="rules">
            <el-form-item label="班级" prop="grade">
              <el-input v-model="formData.grade"></el-input>
            </el-form-item>
            <el-form-item label="姓名" prop="name">
                <el-input v-model="formData.name"></el-input>
            </el-form-item>
            <el-form-item label="性别" prop="gender">
                <el-radio v-model="formData.gender" label="男">男</el-radio>
                <el-radio v-model="formData.gender" label="女">女</el-radio>
            </el-form-item>
               
           
            <el-form-item label="年龄" prop="age">
                <el-input v-model="formData.age"></el-input>
            </el-form-item>
          </el-form>
          <span slot="footer" class="dialog-footer">
            <el-button @click="dialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="handleSubmmit">确 定</el-button>
        </span>
    </el-dialog>
    </div>
</body>
<script type="text/javascript">
    //设置为 false 以阻止 vue 在启动时生成生产提示。
    Vue.config.productionTip = false;
    //创建vue实例
   var vm=new Vue({
       el:"#root",
       data(){
        return {
           info:[],
           dialogVisible: false,
           //表单数据
           formData:{
            select: false,
            grade:'',
            name:'',
            gender:'',
            age:''
            },
            che:[],
           
        //规则
       rules: {
          grade: [
            { required: true, message: '请输入班级', trigger: 'blur' }
          ],
          name: [
            { required: true, message: '请选择姓名', trigger: 'blur' }
          ],
          gender: [
            { required: true, message: '请选择性别', trigger: 'blur' }
          ],
          age: [
            { required: true, message: '请选择年龄', trigger: 'blur' }
          ]
          
        }
       }
       },
       methods: {
           add(){
                this.dialogVisible = true;
                this.$nextTick(()=>{
                    this.$refs["resetForm"].resetFields();
                })
           },
           handledelete(index){
            this.info.splice(index,1)  //用于添加或删除数组中的元素
            this.formData.select=false;
                         
           },
           handleSubmmit(){
              //https://blog.csdn.net/qq_58805860/article/details/127161823
              //push进去的是同一个对象，导致总是相同数据
              this.info.push({
                select: this.formData.select,
                grade:this.formData.grade,
                name:this.formData.name,
                gender:this.formData.gender,
                age:this.formData.age
              });
            this.dialogVisible = false
           },
           handleClose(done) {
                this.$confirm('确认关闭？')
                .then(_ => {
                    done();
                  
                })
                .catch(_ => {});
            }
       },
    
    });

</script>
</html>