Question

c# 读取richtext 里 的所用信息，怎么保存到一个文件里 且怎么从文件里读取出来再写进richtext里

连图片和字体样式也一起读出来
一定是C# winform

Answer 1

using System.IO
private void button1_Click(object sender, EventArgs e)//写入函数
{
byte[] b = Encoding.Default.GetBytes(richTextBox1.Rtf);
FileStream f = new FileStream("C:\\aa.doc",FileMode.Create,FileAccess.Write);
f.Write(b,0,b.Length);
f.Close();
f.Dispose();
MessageBox.Show("写出成功！");
}

private void button2_Click(object sender, EventArgs e)//读取函数
{

FileStream f = new FileStream("C:\\aa.doc", FileMode.Open, FileAccess.Read);
byte[] b = new byte [f.Length];
f.Read(b,0,b.Length);
richTextBox1.Rtf = Encoding.Default.GetString(b,0,b.Length);
f.Close();
f.Dispose();
MessageBox.Show("读取成功！");
}

Answer 2

using System.IO;

//写
File.WriteAllText("D:\\123.rtf", richTextBox1.Rtf);
//读
richTextBox1.Rtf = File.ReadAllText("D:\\123.rtf");