element的表格

<!-- 主区域 -->
              <section class="main-wrap">
                <!-- 表格 -->
                <div class="table-wrap">
                  <el-table ref="multipleTable" :data="tableData" row-key="studentId" v-loading="loadingTable" header-row-class-name="lc-table-header" row-class-name="lc-no-hover" height="100%" border @selection-change="selectItems">
                    <el-table-column align="center" reserve-selection type="selection"></el-table-column>
                    <el-table-column align="center" prop="studentName" label="姓名" show-overflow-tooltip></el-table-column>
                    <el-table-column align="center" prop="sex" label="性别" show-overflow-tooltip></el-table-column>
                    <el-table-column align="center" prop="studentCode" label="学号" show-overflow-tooltip></el-table-column>
                  </el-table>
                </div>
              </section>