How to add prompt information after el-form-item

Project scenario:

Using element's el-form form, how to add Tooltip text prompt information after el-form-item

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solution:

Go directly to the code:

        <el-form-item label="按占有时长计费" :label-width="formLabelWidth" prop="ownTimeFlag">
          <template slot="label">
            <span>按占有时长计费
              <el-tooltip class="item" effect="dark" placement="right">
                <i class="el-icon-question" style="font-size: 16px; vertical-align: middle;"></i>
                <div slot="content">
                  <p>是否按占有时长计费(后付费生效)：</p>
                  <p>选择是：计量数据大于0，将会忽略计量数据与公式的计算，直接计算整个时段(计量周期)费用。如：按日月结选择是，用1秒也按1天计费。</p>
                  <p>选择否：计量数据与配置的公式进行计算。</p>
                </div>
              </el-tooltip>
            </span>
          </template>
          <el-radio-group v-model="createOrEditeForm.ownTimeFlag">
            <el-radio :label="true">是</el-radio>
            <el-radio :label="false">否</el-radio>
          </el-radio-group>
        </el-form-item>

The effect is as follows: