張亮的博客園

 #region ReadAllBytes

byte[] buffer = File.ReadAllBytes(@"C:\Users\dell\Desktop\新建文件夾.txt");

//將字節(jié)數(shù)組轉(zhuǎn)換成字符串
//解決亂碼 GB2312 GBK Default UTF8
//string str = System.Text.Encoding.UTF8.GetString(buffer);
//Console.WriteLine(str);
//Console.ReadKey();
#endregion

#region ReadAllLines
//string[] str = File.ReadAllLines(@"C:\Users\dell\Desktop\新建文件夾.txt");
//for (int i = 0; i < str.Length; i++)
//{
// Console.WriteLine(str[i]);
//}
//Console.ReadKey();
#endregion

#region ReadAllText
//string str = File.ReadAllText(@"C:\Users\dell\Desktop\新建文件夾.txt");
//Console.WriteLine(str);
//Console.ReadKey();
#endregion

//復制一個多媒體文件

#region WriteAllBytes
//先讀取 再寫入
//byte[] buffer = File.ReadAllBytes(@"C:\Users\dell\Desktop\好聲音.wmv");

//File.WriteAllBytes(@"C:\Users\dell\Desktop\好聲音復制.wmv", buffer);

//Console.WriteLine("復制成功");
//Console.ReadKey();
#endregion

#region WriteAllLines
//File.WriteAllLines(@"C:\Users\dell\Desktop\新的.txt", new string[] { "1", "2", "3", "4" });
//Console.WriteLine("寫入成功");
//Console.ReadKey();
#endregion

#region WriteAllText
//File.WriteAllText(@"C:\Users\dell\Desktop\新的.txt", "看有沒有覆蓋掉");
//Console.WriteLine("寫入成功");
//Console.ReadKey();
#endregion

File.AppendAllText(@"C:\Users\dell\Desktop\新的123.txt","哈哈哈哈哈");
Console.ReadKey();

最強大的ReadAllBytes和WriteAllBytes 轉(zhuǎn)換成2進制數(shù)據(jù)進行讀寫

File只適用與小型的文件 代碼簡潔省時 大文件用FileStream