diff --git a/src/components/JExpandTable.vue b/src/components/JExpandTable.vue
index efb591b..339dad7 100644
--- a/src/components/JExpandTable.vue
+++ b/src/components/JExpandTable.vue
@@ -282,6 +282,9 @@ export default {
       },
       deep: true,
       immediate: true
+    },
+    expandedRowKeys (val) {
+      console.log('expandedRowKeys改变了', val)
     }
   },
   data () {
@@ -359,7 +362,8 @@ export default {
         const firstPage = parseInt((Number(firstIndex) + 1) / this.ipagination.pageSize) + 1
         this.ipagination.current = firstPage
         this.$nextTick(() => {
-          this.expandedRowKeys = [...this.expandedRowKeys, ...errorRows.map(tt => tt.rowKey)]
+          const arr = [...this.expandedRowKeys, ...errorRows.map(tt => tt.rowKey)]
+          this.expandedRowKeys = Array.from(new Set(arr))
           let timer = setTimeout(() => {
             this.$nextTick(() => {
               errorIndex.forEach(index => {