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  • 使用StreamReader和StreamWriter读取和写入文本文件

    1.读取文本

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    using System;  
    using System.Collections.Generic;  
    using System.Text;  
    using System.Linq;  
    using System.Collections;  
    using System.Diagnostics;  
    using System.IO;  
    namespace 练习专用  
    {  
        class Program  
        {  
            static void Main(string[] args)  
            {  
                using (FileStream fs = new FileStream(@"E:清理系统盘.txt", FileMode.Open))  
                {  
                    using (StreamReader sr = new StreamReader(fs))  
                    {  
                        //一行一行读取  
                        StringBuilder sb = new StringBuilder();  
                        while (!sr.EndOfStream)  
                        {  
                            sb.AppendLine(sr.ReadLine());  
                        }  
                        Console.WriteLine(sb.ToString());  
                        //直接读到末尾  
                        //string str = sr.ReadToEnd();  
                        //Console.WriteLine(str);  
                    }  
                }  
            }  
        }  
    } 

    2.写入文本

    using System;  
    using System.Collections.Generic;  
    using System.Text;  
    using System.Linq;  
    using System.Collections;  
    using System.Diagnostics;  
    using System.IO;  
    namespace 练习专用  
    {  
        class Program  
        {  
            static void Main(string[] args)  
            {  
                using (FileStream fs = new FileStream(@"E:	est.txt", FileMode.OpenOrCreate))  
                {  
                    using (StreamWriter sw=new StreamWriter(fs))  
                    {  
                        string str = "不积跬步,无以至千里;不积小流,无以成江海。";  
                        sw.Write(str);  
                    }  
                }  
            }  
        }  
    } 

    原文:https://blog.csdn.net/sinat_32832727/article/details/53768116

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  • 原文地址:https://www.cnblogs.com/Cein/p/9051400.html
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