| 流 | 类 | 函数 | 举例 | |
| 字符流 | StreamReader | 文本方式读取和写入文件内容的流 | ||
| 构造 | StreamReader | string filePath = "C:\\path\\to\\file.txt"; StreamReader reader = new StreamReader(filePath); | ||
| 逐行读取 | WriteLine | string line; while ((line = reader.ReadLine()) != null) { Console.WriteLine(line); } | ||
| 读取整个 | ReadToEnd | string content = reader.ReadToEnd(); | ||
| 关闭 | Close | writer.Close(); | ||
| 指定的编码 | StreamReader | // 使用指定的编码方式创建 StreamReader 对象 StreamReader reader = new StreamReader(filePath, Encoding.UTF8); | ||
| 读取字符到缓冲区 | Read | char[] buffer = new char[1024]; // 定义一个缓冲区 int charsRead = reader.Read(buffer, 0, buffer.Length); // 从流中读取字符到缓冲区 string text = new string(buffer, 0, charsRead); // 将字符数组转换为字符串 | ||
| StreamWriter | 文本方式读取和写入文件内容的流 | |||
| 构造 | StreamWriter | string filePath = "C:\\path\\to\\file.txt"; StreamWriter writer = new StreamWriter(filePath); | ||
| 写入文本 | Write | string content = "Hello, World!"; writer.Write(content); | ||
| 关闭 | Close | reader.Close(); | ||
| 指定的编码 | StreamWriter | // 使用指定的编码方式创建 StreamWriter 对象 StreamWriter writer = new StreamWriter(filePath, false, Encoding.UTF8); | ||
| 写入换行符 | WriteLine | writer.WriteLine(); // 写入一个换行符 | ||
| 二进制 | BinaryReader | |||
| 构造 | BinaryReader | string filePath = "C:\\path\\to\\file.bin"; FileStream fileStream = new FileStream(filePath, FileMode.Open); BinaryReader reader = new BinaryReader(fileStream); | ||
| 读取 | Read | int intValue = reader.ReadInt32(); // 读取一个 int 值 double doubleValue = reader.ReadDouble(); // 读取一个 double 值 byte[] buffer = new byte[1024]; int bytesRead = reader.Read(buffer, 0, buffer.Length); // 读取字节数组 | ||
| 关闭 | Close | reader.Close(); // 关闭 BinaryReader | ||
| BinaryWriter | ||||
| 构造 | BinaryWriter | string filePath = "C:\\path\\to\\file.bin"; FileStream fileStream = new FileStream(filePath, FileMode.Create); BinaryWriter writer = new BinaryWriter(fileStream); | ||
| 写入 | Write | int intValue = 42; double doubleValue = 3.14; byte[] buffer = new byte[] { 0x01, 0x02, 0x03 }; writer.Write(intValue); // 写入一个 int 值 writer.Write(doubleValue); // 写入一个 double 值 writer.Write(buffer, 0, buffer.Length); // 写入字节数组 | ||
| 关闭 | Close | writer.Close(); // 关闭 BinaryWriter | ||
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c# 文件流处理 常用功能记录
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