<el-col :span="12">
                <el-form-item label="进度" prop="schedule"
                              :rules="[
                  {required: true, message:'进度不能为空', trigger:'blur'},
                  {validator: validator.isFloatGteZero, trigger:'blur'}
                 ]">
                    <el-input v-model="inputForm.schedule" placeholder="请填写进度" min="0" max="100">
                        <template slot="append">%</template>
                    </el-input>
                </el-form-item>
            </el-col>

         在input框中，添加  <template slot="append">%</template>