可能修复了付款码图片无法放大预览的bug，还改动了一些奇怪的地方

src/views/Matching.vue

@@ -252,7 +252,7 @@
               <!-- <img :src="getImageUrl(transferDialog.toUser.wechatQr)" alt="微信收款码" class="qr-code" /> -->
               <el-image 
                 :src="getImageUrl(transferDialog.toUser.wechatQr)"
-                :preview-src-list="getImageUrl(transferDialog.toUser.wechatQr)"
+                :preview-src-list="[getImageUrl(transferDialog.toUser.wechatQr)]"
                 class="qr-code"
                 fit="cover"
               >
@@ -268,7 +268,7 @@
               <!-- <img :src="getImageUrl(transferDialog.toUser.alipayQr)" alt="支付宝收款码" class="qr-code" /> -->
               <el-image 
                 :src="getImageUrl(transferDialog.toUser.alipayQr)"
-                :preview-src-list="getImageUrl(transferDialog.toUser.alipayQr)"
+                :preview-src-list="[getImageUrl(transferDialog.toUser.alipayQr)]"
                 class="qr-code"
                 fit="cover"
               >
@@ -284,7 +284,7 @@
               <!-- <img :src="getImageUrl(transferDialog.toUser.unionpayQr)" alt="云闪付收款码" class="qr-code" /> -->
               <el-image 
                 :src="getImageUrl(transferDialog.toUser.unionpayQr)"
-                :preview-src-list="getImageUrl(transferDialog.toUser.unionpayQr)"
+                :preview-src-list="[getImageUrl(transferDialog.toUser.unionpayQr)]"
                 class="qr-code"
                 fit="cover"
               >
@@ -336,7 +336,18 @@
                 <el-button size="small" type="primary">上传凭证</el-button>
               </el-upload>
               <div v-if="transferDialog.voucher" class="upload-preview">
-                <img :src="getImageUrl(transferDialog.voucher)" alt="转账凭证" />
+                <el-image 
+                  :src="getImageUrl(transferDialog.voucher)" 
+                  :preview-src-list="[getImageUrl(transferDialog.voucher)]"
+                  alt="转账凭证"
+                  fit="cover"
+                >
+                  <template #error>
+                    <div>
+                      <el-icon><Picture /></el-icon>
+                    </div>
+                  </template>
+                </el-image>
               </div>
               <div v-else class="upload-tip">
                 <span class="tip-text">* 必须上传转账凭证才能确认转账</span>
@@ -387,9 +398,13 @@
 <script>
 import api from '../utils/api'
 import { uploadURL, getImageUrl, getUploadConfig } from '@/config'
+import { Picture } from '@element-plus/icons-vue'
 
 export default {
   name: 'Matching',
+  components: {
+    Picture
+  },
   data() {
     return {
       stats: {