private void Button3_Click(object sender, System.EventArgs e) { //写二进制文件 BinaryWriter bw; //创建一个二进制文件 FileStream fs=new FileStream (MapPath("mydata.data"),FileMode.Create ); bw=new BinaryWriter (fs);//初始化一个BinaryWriter for(int i=0;i<200;i++) bw.Write (i);//写入 bw.Close ();//关闭 }
private void Button4_Click(object sender, System.EventArgs e) { //读二进制文件 BinaryReader br; string str=""; FileStream fs=new FileStream (MapPath("mydata.data"),FileMode.Open ); br=new BinaryReader (fs); for(int i=0;i<fs.Length /4;i++) str+=br.ReadInt32 ().ToString (); TextBox1.Text =str; } 
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