fix：教师记录图片分割错误

src/views/customize/SmartCenter.vue

@@ -134,7 +134,7 @@
         >
           <Table 
             v-for="(ei, i) in item"
-            :ref="el => el && ei.classLevelCode && pdfGradeDomainDom.push({el, classLevelCode: ei.classLevelCode, i})" 
+            :ref="el => el  && pdfGradeDomainDom.push({el, classLevelCode: ei.classLevelCode, i})" 
             :key="i" 
             :columns="testColumns"
             :data="ei.data"
@@ -345,15 +345,17 @@ const exportReport = () =>  {
     }
 
     const _pdfGradeDomainDom = []
-
-
+    
+   
     for (let index = 0; index < pdfGradeDomainDom.value.length; index++) {
       const dom = pdfGradeDomainDom.value[index]
       const _index = _pdfGradeDomainDom.findIndex(item => item.classLevelCode === dom.classLevelCode && item.i === dom.i)
+
+      
       if (_index === -1) _pdfGradeDomainDom.push(dom)
     }
     
-
+  
     for (let index = 0; index < gradeDomainDomKeys.length; index++) {
       const key = gradeDomainDomKeys[index]
       const title = levelIdMap.value.get(Number(key)) + '各领域能力表现阶段汇总'