// 典型内存杀手写法Workbookworkbook=newXSSFWorkbook();Sheetsheet=workbook.createSheet();for(inti=0; i <1000000; i++) {Rowrow=sheet.createRow(i);// 每行产生Row对象row.createCell(0).setCellValue("数据"+i);// 每个Cell独立存储} 这种写法会产生约100万个Row对象和1000万个Cell对象(假设每行10...
applymap() (elementwise):接受一个函数,它接受一个值并返回一个带有 CSS 属性值对的字符串。apply()(column-/ row- /table-wise): 接受一个函数,它接受一个 Series 或 DataFrame 并返回一个具有相同形状的 Series、DataFrame 或 numpy 数组,其中每个元素都是一个带有 CSS 属性的字符串-值对。此方法根据axi...
AI代码解释 // 极简流式API示例String fileName="data.xlsx";EasyExcel.write(fileName,DataModel.class).registerWriteHandler(newLongestMatchColumnWidthStyleStrategy()).sheet("Sheet1").doWrite(data->{// 分页查询数据int page=0;while(true){List<DataModel>list=queryByPage(page,5000);if(CollectionUtils...
FirstFreeRowOnColumn 数值 给定列的第一个完全空行的数值 异常 展开表 例外描述 无法检索第一个空闲行 指示检索 Excel 实例的第一个空闲行时出现问题 从Excel 中读取公式 读取Excel 中单元格内的公式。 输入参数 展开表 参数可选接受默认值说明 Excel instance 否 Excel 实例 要处理的 Excel 实例。 此变量必...
Engineering: Tests whether a number is greater than a threshold value GETPIVOTDATA Lookup and reference: Returns data stored in a PivotTable report GROUPBY (Microsoft 365) Lookup and reference: Helps a user group, aggregate, sort, and filter data based on the fields you specify GROWTH Stat...
Step 2Click on the Data tab. In the Sort & Filter group, click on the Filter button. Step 3In the Filter by value drop-down list, select the criteria that you want to use to filter the data. Step 4The column will be subjected to the filter. ...
row.createCell(0).setCellValue("数据"+i); // 每个Cell独立存储 } 这种写法会产生约100万个Row对象和1000万个Cell对象(假设每行10列),直接导致内存占用突破1GB。 更致命的是频繁Full GC会导致系统卡顿甚至OOM崩溃。 2 流式处理架构设计 高性能导出的核心在于内存与磁盘的平衡。
On the Home tab, in the Editing group, click Sort & Filter, and then click Clear to clear the filter. Some data in this workbook is filtered by a cell color. Rows that are hidden by the filter will remain hidden, but the filter itself will not display correctly in earlier...
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{\n width: 40px;\n height: auto;\n transition: filter 0.3s ease;\n}\n\n.social-share-list {\n width: 40px;\n}\n.social-share-rss-image {\n width: 40px;\n}\n\n.share-icon {\n border: 2px solid transparent;\n display: inline-block;\n position: rela...