这是我在button里面写入的代码 FileStream fs = new FileStream("C:\\PDDN\\pdstyle.txt", FileMode.Open); StreamReader sr = new StreamReader(fs);
string sp = sr.ReadLine();
string sl = sp.Substring(53, 8).Trim();//数量
string shbm = sp.Substring(0, 12).Trim();//商品编码
sl = Inventory.Text;//把textbox里面的值赋给sl
StreamWriter sw = new StreamWriter(fs); //开始写入
sw.Write(sl);//写入
//清空缓冲区
sw.Flush();
//关闭流
sw.Close();
sr.Close();
fs.Close();
this.Hide();c#写入txt windows窗体
string sp = sr.ReadLine();
string sl = sp.Substring(53, 8).Trim();//数量
string shbm = sp.Substring(0, 12).Trim();//商品编码
sl = Inventory.Text;//把textbox里面的值赋给sl
StreamWriter sw = new StreamWriter(fs); //开始写入
sw.Write(sl);//写入
//清空缓冲区
sw.Flush();
//关闭流
sw.Close();
sr.Close();
fs.Close();
this.Hide();c#写入txt windows窗体
stringbulider sb=new();
sb.app(编码_______________________+"</br>" );
一个一个完了。然后再写进去txt
TXT很久没做了,记得刚学时弄过,很多年前的事了,忘记了.