本篇内容简单介绍如何在c#中内容读取和写入txt文档
注意：先在Unity的StreamingAssets文件夹中创建一个txt文档
一、读取txt
1.1全部一起读取
private void ReadText01()
{string filePath = Path.Combine(Application.streamingAssetsPath, "testTXT.txt");// 读取文件内容if (File.Exists(filePath)){string fileContent = File.ReadAllText(filePath);Debug.Log(fileContent); // 输出文件内容}else{Debug.LogError("文件不存在: " + filePath);}
}
1.2全部逐行读取
private void ReadText02()//逐行读取
{string filePath2 = Path.Combine(Application.streamingAssetsPath, "testTXT.txt");// 读取文件内容if (File.Exists(filePath2)){using (StreamReader reader = new StreamReader(filePath2)){string line;while ((line = reader.ReadLine()) != null){Debug.Log(line); // 输出每一行内容}}}else{Debug.LogError("文件不存在: " + filePath2);}
}
二、写入txt
2.1全部一起写入（删除旧内容，添加新内容）
private void WriteTxt01()//全部写入{string filePath3 = Path.Combine(Application.streamingAssetsPath, "testTXT.txt");// 要写入的内容string contentToWrite = "方法1小文件写入txt";// 写入文件内容File.WriteAllText(filePath3, contentToWrite);}
2.2全部逐行写入（删除旧内容，添加新内容）
private void WriteTxt02()//逐行写入
{string filePath4 = Path.Combine(Application.streamingAssetsPath, "testTXT.txt");// 要写入的内容string contentToWrite2 = "Hello, this is a test message.\nThis is a new line.";// 使用 StreamWriter 写入文件内容using (StreamWriter writer = new StreamWriter(filePath4)){writer.WriteLine(contentToWrite2); // 写入内容}
}
2.3全部一起写入（不删除旧内容情况下直接添加新内容）
private void WriteTxt01()//全部写入
{string filePath3 = Path.Combine(Application.streamingAssetsPath, "testTXT.txt");// 要写入的内容string contentToWrite = "方法1小文件写入txt";// 追加文件内容File.AppendAllText(filePath3, contentToWrite);
}
2.4全部逐行写入（不删除旧内容情况下直接添加新内容）
private void WriteTxt02()//支持逐行写入
{// 设置文本文件的路径（在 Unity 的 StreamingAssets 文件夹中）string filePath4 = Path.Combine(Application.streamingAssetsPath, "testTXT.txt");// 要写入的内容string contentToWrite2 = "Hello, this is a test message.\nThis is a new line.";using (StreamWriter writer2 = new StreamWriter(filePath4, true)){writer2.WriteLine("This line will be appended.");}
}
