Xcode升级10.3后XiB文件包错,提示: Failed to find or create execution context for description '<IBCocoaTouchPlatformToolDescription: 0x7fefbefd1d80> System content for IBCocoaTouchFramework-EightAndLater <IBScaleFactorDeviceTypeDescription: 0x7fefbebf4f70&g…
使用POI导出xls文件,由于数据过多,导致导出xls报错如下: The maximum number of cell styles was exceeded. You can define up to 4000 styles in a .xls workbook 原因: 代码中创建 HSSFCellStyle cellStyle = hssfWorkbook.createCellStyle(); 次数过多,导致报错. 解决方法: 把创建HSSFCellStyle对象放在循环之外,或者放在全局,…