做备忘录收获

清空文件内容：

private void btn_delall_Click(object sender, EventArgs e)
{
FileInfo info = new FileInfo(@"F:\ASP.NET\备忘录\a.txt");
MessageBox.Show("是否要清空您的所有记录","Warning",MessageBoxButtons.YesNo,MessageBoxIcon.Warning);
info.Delete();
this.listBox1.Items.Clear();//清空列表
}//删除全部

浏览备忘录：

private void btn_scan_Click(object sender, EventArgs e)
{
FileStream FStream1 = new FileStream(@"F:\ASP.NET\备忘录\a.txt",FileMode.OpenOrCreate);
StreamReader sr = new StreamReader(FStream1, System.Text.Encoding.Default);
string strLine= sr.ReadLine();
if (strLine == null)
{
MessageBox.Show("对不起，您的备忘录中没有数据！");
}
else
{
while (strLine != null)
{
strLine = sr.ReadLine();
if (strLine != null && !strLine.Equals(""))
this.listBox1.Items.Add(strLine);
}
sr.Close();
}

}//查看备忘录

定时提醒器：

private void timer1_Tick(object sender, EventArgs e)
{
//this.timer1.Enabled = true;
label3.Text = string.Format("{0:yyyy/MM/d HH:mm:ss}", DateTime.Now); //获取系统时间 24小时制小时写成大写“HH”，12小时制的小时写成小写的“hh”
FileStream FStream = new FileStream(@"F:\ASP.NET\备忘录\a.txt",FileMode.Open);
StreamReader SReader = new StreamReader(FStream,System.Text.Encoding.Default);
string strLine = SReader.ReadLine();
while (strLine != null)
{
strLine = SReader.ReadLine();
if (strLine != null && !strLine.Equals(""))
{
string[] read = strLine.Split(' ');
string a=label3.Text;
string[] str = a.Split(' ');
string[] str2 = str[1].Split(':');
if (str[0] == read[0].Trim() && str2[0] == read[1].Trim() && str2[1] ==read[2].Trim())
{
playmusic();
}
}
}
SReader.Dispose();
FStream.Dispose();

}

更换头像：

private void btn_ChangeH_Click(object sender, EventArgs e)
{
if (this.openFileDialog1.ShowDialog()==DialogResult.OK)
{
if (this.openFileDialog1.FileName!=null)
{
this.openFileDialog1.ShowDialog();
this.pic_Head.Image = Image.FromFile(this.openFileDialog1.FileName);
}
}
}//更换头像