Merge pull request '批量导入成本' (#143) from master-dev into master

Reviewed-on: http://git.xdadan.loc/tanex/emis-frontend/pulls/143

src/views/emis/emisTmsCostFee/BatchImportCostFee.vue

@@ -265,18 +265,21 @@ export default {
           // const header = this.getHeaderRow(worksheet) // 标题
           const results = XLSX.utils.sheet_to_json(worksheet)
 
-
-          // 标题头
-          that.dynamicCol=[];
-          for (var key in results[0]) {
-            that.dynamicCol.push(
-              {
-                label:key,
-                prop:key
-              }
-            ); 
+          that.dynamicCol = [];
+          const keysSet = new Set(); // 用Set存储key，自动去重
+          // 遍历所有results中的对象
+          for (const item of results) {
+            // 遍历当前对象的每个key
+            for (const key in item) {
+              // 添加到Set（重复的key会被自动忽略）
+              keysSet.add(key);
+            }
           }
-
+          // 将Set转换为数组，并映射为目标格式
+          that.dynamicCol = Array.from(keysSet).map(key => ({
+            label: key,
+            prop: key
+          }));
           // 转换费用类型
           that.feeItemMap=new Map();;
           for(let i=0;i<that.dict.type.emis_cost_fee_type.length;i++){