#TextWriter
#Text#Reader(定義的一組通用的,讀取和寫入字元資料的方式)
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StreamReader StreamWriter:
1,繼承自
TextWriter
#TextReader,定義了一組通用的,讀取和寫入字元資料的方式
2,適用於讀取和寫入文字字元的場合
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#BinaryReader##:用於向流中以二進位的方式寫入基底元類型
BinaryWriter#:用於從流中讀取基元類型
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StringReader StringWriter:1,也繼承自##TextWriter
TextReader,用於處理字串#
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#region StringReader,StringWriter的使用;
// string text = @"姓名:水田如雅;
// 年龄:20;
// 性别:女";
// StringReader reader = new StringReader(text);
// int c = reader.Read();
// Console.WriteLine((char)c);
// char[] buffer = new char[7];
// reader.Read(buffer, 0, buffer.Length);
// Console.WriteLine(string.Join("", buffer));
// string line = reader.ReadLine();
// Console.Write(line);
// string rest = reader.ReadToEnd();
// Console.WriteLine(rest);
// reader.Dispose();
// Console.ReadKey();
#endregion
#region streamreader/StreamWriter的使用
//FileStream fs = new FileStream("AboutVac.txt", FileMode.Open, FileAccess.Read);
//StreamReader reader=new StreamReader(fs,Encoding.GetEncoding("GB2312"));
//do
//{
// Console.WriteLine(reader.ReadLine());
//} while (reader.Read()>0);
//StreamWriter writer = new StreamWriter("aboutMe.txt", false, Encoding.UTF8);
//writer.Write("hello,word");
//reader.Dispose();
//writer.Dispose();
//Console.ReadKey();
#endregion
#region BinaryReader/BinaryWriter的使用
//Product product = new Product("Product.txt") {
// id=110,
// price=123.3,
// Name="lhc"
//};
//product.Save();
//Product newItem =new Product("Product.txt");
//newItem.Load();
//Console.WriteLine(newItem);
//Console.ReadKey();
#endregion
public class Product {
public int id { get; set; }
public string Name { get; set; }
public double price { get; set; }
private string filePath;
public Product(string filePath) { this.filePath = filePath; }
public void Save() {
FileStream fs = new FileStream(this.filePath, FileMode.Create, FileAccess.Write);
BinaryWriter writer = new BinaryWriter(fs);
writer.Write(this.id);
writer.Write(this.Name);
writer.Write(this.price);
writer.Dispose();
}
public void Load() {
FileStream fs = new FileStream(this.filePath, FileMode.Open, FileAccess.Read);
BinaryReader reader = new BinaryReader(fs);
this.id = reader.ReadInt32();
this.Name = reader.ReadString();
this.price = reader.ReadDouble();
reader.Dispose();
}
public override string ToString()
{
return string.Format("ID:{0},Name:{1},Price:{2}", this.id, this.Name, this.price);
}
}
#幫助類別
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##命名空間:#system.io
#File
| ##FileInfo | Path |
Directory /DirecoryInfo
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##Create;
Open;openRead;openWrite;Copy;
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處理路徑 |
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#region 工具类示例
// File.WriteAllText("FileTest.txt", "hello,i'm using file ", Encoding.UTF8);
#endregion
在使用的時候,還是應該先考慮已有的高階類別是否封裝了可用的方法,沒有的話,再考慮使用基本類別進行封裝。
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