feat: 签名优化

- 解决签名异常的问题

src/views/Design/components/Questions/SignQuestion.vue

@@ -1,6 +1,7 @@
 <script setup lang="ts">
-import { computed, onMounted, ref, useTemplateRef } from 'vue';
-import CommonApi from '@/api/common.js';
+import { computed, onMounted, ref, useTemplateRef, watch } from 'vue';
+import { showConfirmDialog } from 'vant';
+
 // question 属性
 const element = defineModel<question>('element', { default: {} });
 // 属性框是否激活
@@ -185,15 +186,24 @@ const emitValue = () => {
   emit('update:element', element.value);
 };
 
+let aIndex = 1;
 /**
  * 上传文件
  */
 async function handleUploadImg() {
-  const file = new File([saveCanvas('blob')!], 'sign.png', { type: 'image/png' });
-  const res = await CommonApi.cosUpload(file);
-  console.log(`sign upload url`, res);
-  // 传递答案
-  answer.value = res;
+  // const file = new File([saveCanvas('blob')!], 'sign.png', { type: 'image/png' });
+  // const res = await CommonApi.cosUpload(file);
+  // console.log(`sign upload url`, res);
+  // // 传递答案
+  // answer.value = res;
+  showConfirmDialog({
+    title: '提示',
+    message: '上传成功',
+    showCancelButton: false
+  }).then(() => {
+    aIndex++;
+    answer.value = 'this is test' + aIndex;
+  });
 }
 </script>