vue + elementUI 给input输入框添加 字体小图标

<tr>
  <td class="labelName">项目经理td>
  <td class="t-box-DataOne">
    <el-input
      v-model="TecPromoteApproveJob.projectManager"
      prefix-icon="el-icon-s-custom"
      style="width: 140px"
      @blur="projectLeader()">el-input>{{ money2 }}
  td>
  <td class="labelName">项目经理电话td>
  <td class="t-box-DataOne">
    <el-input
      v-model="TecPromoteApproveJob.pmPhone"
      style="width: 180px">el-input>
  td>
tr>

 参考：https://blog.csdn.net/qq_14993591/article/details/122603310