Question

C# 怎么把文本框中的文字 写入到txt文档中，该文档要在保存时创建的。 就像大多数软件一样，命名，然后保存

Answer 1

private void TestLog(string msg)
{
string path = "C:/.......";
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
path = path + DateTime.Today.ToString("yyyyMMdd") + "Log.txt";
FileStream fs = new FileStream(path, FileMode.Append);
StreamWriter sw = new StreamWriter(fs, Encoding.GetEncoding("GB2312"));
sw.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " " + msg);
sw.Close();
fs.Close();
}
然后直接调用，不用我写了吧

Answer 2

string path = "e:\\mytest.txt"; //文件路径
FileStream fs = new FileStream(path, FileMode.Append);//以追加的方式打开文件
StreamWriter sw = new StreamWriter(fs);
sw.WriteLine（“。。。。。。。。。。。。”）;//写入字符串
sw.Close(); //关闭文件
fs.Close();