C#-文件读取

三种读取文件的方法:

1、全部读取

2、按行读取

3、全部读取到字符串数组中,数组元素存储行文本.

代码:

#region 读取文件内容

#region 全部读取到字符串变量string text = System.IO.File.ReadAllText(@"E:\1---软件\1---C#上位机\1---USB-CAN上位机界面\1---C#代码\1---上位机代码\Test.txt");System.Console.WriteLine("Contents of Test.txt = {0}", text);#endregion
#region 一次读取一行int counter = 0;string line;System.IO.StreamReader file =new System.IO.StreamReader(@"E:\1---软件\1---C#上位机\1---USB-CAN上位机界面\1---C#代码\1---上位机代码\test.txt");while ((line = file.ReadLine()) != null){System.Console.WriteLine(line);counter++;}file.Close();System.Console.WriteLine("There were {0} lines.", counter);#endregion
#region 全部读取到字符串数组中,每个数组元素存储一行文本string[] lines = System.IO.File.ReadAllLines(@"E:\1---软件\1---C#上位机\1---USB-CAN上位机界面\1---C#代码\1---上位机代码\Test.txt");System.Console.WriteLine("Contents of Test.txt = ");foreach (string line2 in lines){Console.WriteLine("\t" + line2);}#endregionConsole.Read();#endregion

路径需要更换为定义文件路径