技术中心部分修改，添加库存系统

src/views/TechnologyCenter/ImportParts/index.vue

@@ -27,6 +27,15 @@
       </div>
     </el-card>
     <specification-data ref="specificationData" :groups-names="groupsNames" :machine-names="machineNames" :project-name="projectName" @machineChange="machineChange"/>
+    <el-upload
+      class="upload-demo"
+      drag
+      action="http://localhost:8410/submit/uploadImg.ashx?InvoiceNum=1"
+      multiple>
+      <i class="el-icon-upload"/>
+      <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
+      <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
+    </el-upload>
   </div>
 </template>