file.openread
如何用C#实现文件的三种读写方式:无缓存,有缓存,异步。最好...
1、声明并使用File的OpenRead实例化一个文件流对象，就像下面这样 FileStream fs = File.OpenRead(filename);或者 FileStream fs = FileStream(filename, FileMode.Open, F...
使用MimiExcel读取大文件时内存溢出如何解决? - 编程...
using var stream = File.OpenRead("large.xlsx"); var config = new MiniExcelLibs.OpenXml.ReadConfiguration { UseStreaming = true }; ...
C#读取DAT文件数据时如何正确解析格式? - 编程语言 - CSDN...
2. 使用BinaryReader读取二进制数据using (var br = new BinaryReader(File.OpenRead("binary.dat"))) { byte[] buffer = new byte[Marshal...
NPIO操作word导入表格插入换行符 - 百度经验
1 方法一：直接给单元格添加文本:"\n","\r\n"均无效string file = @"test.docx";Stream stream = File.OpenRead(file);XWPFDocument doc...
二进制文件如何判断结束 - 百度经验
方法/步骤 1 FileStreamfs=File.OpenRead(path);BinaryReaderbrReader=newBinaryReader(fs);while(brReader.BaseStream.Position-1){//TODO}}
C#利用npoi在已有多个Sheet的Excel中的其中一个Sheet插入...
string fileName = @"f:\2015光盘内容一览.xls";HSSFWorkbook workbook;using (FileStream stream = File.OpenRead(fileName))workbook = new HSSFWorkbook(stream);I...
请教FileStream 如何转换为 MemoryStream
using(FileStream fs = File.OpenRead(filePath)){ int length = (int)fs.Length;byte[] data = new byte[length];fs.Position = 0;fs.Read(data, 0, length);...
有人总结过C#操作EXCEL的具体方法,完整的?
// or using (var stream = File.OpenRead(path)) var rows = stream.Query<UserAccount>();1.2 Query 查询支援延迟加载(Deferred...
c# - C# NPOI 把一个xlsx里的某sheet复制到另一个xlsx...
FileStream file2007Source = File.OpenRead("file2007Source.xlsx"); FileStream file2007Target = new FileStream("file2007Target.xlsx", FileMode.OpenOrCreate); XSSFWorkbook f2s...
请教SQLite数据库读写BLOB字段
FileStream picStream = File.OpenRead(@"d:\1.bmp");byte[] bArray = new byte[picStream.Length];picStream.Read(bArray, 0, bArray.Length);picStream.Close(...