我正在参加「创意开发 投稿大赛」详情请看：掘金创意开发大赛来了！
- 关机谁不会啊,点点鼠标就好了。定时关机呢? cmd+ shutdown -s -t 60 ? 你确定你的小可爱会这些吗？就算会，每次还要算一下时间，转换单位,如果设置成功了，又突然想取消咋办？女朋友就算小可爱，就是宝宝。你让你的宝宝考虑这么多的问，你不心疼吗？
- 所以，一个有爱的自动关机小助手上线了！
- 先看界面，虽然简陋，甚至带有土气。但是这正好反应了直男程序员的浪漫啊！
-
系统环境
-
基于Windows Form的c#开发
-
先说功能 功能主要分为指定时间关机 和倒计时关机，指定时间关机就是在一个特定的时间关机，比如下班5.30， 倒计时关机就是指定时间后关机。所有的关机都持取消。
-
后端代码 主要包括初始化界面配置，具体的关机逻辑通过子进行调用cmd程序，然后执行对应的命令，这样的好处是方便我们修改配置，和利用成熟的软件。 在指定时间关机时关机时间不能小于当前时间。
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
dateTimePicker1.Enabled = false;
comboBox1.Enabled = false;
//先构造一个dataTable，或者从数据库读取到一个，这里自己构造一个
DataTable dataTable = new DataTable();
dataTable.Columns.Add("Number", typeof(double));
dataTable.Columns.Add("ShowText", typeof(String));
dataTable.Rows.Add(new String[] { "10", "10分钟" });
dataTable.Rows.Add(new String[] { "30", "30分钟" });
dataTable.Rows.Add(new String[] { "60", "60分钟" });
dataTable.Rows.Add(new String[] { "120", "2小时" });
dataTable.Rows.Add(new String[] { "240", "4小时" });
dataTable.Rows.Add(new String[] { "360", "6小时" });
comboBox1.DataSource = dataTable;//绑定
comboBox1.DisplayMember = dataTable.Columns[1].ColumnName;//显示的文本
comboBox1.ValueMember = dataTable.Columns[0].ColumnName;//对应的值
button1.Enabled = false;
}
private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
dateTimePicker1.Enabled = true;
comboBox1.Enabled = false;
}
private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
comboBox1.Enabled = true;
dateTimePicker1.Enabled = false;
}
private void dateTimePicker1_ValueChanged(object sender, EventArgs e)
{
TimeSpan ts = dateTimePicker1.Value.Subtract(DateTime.Now);
if (ts.TotalSeconds < 0)
{
MessageBox.Show("关机时间不能小于当前时间");
button1.Enabled = false;
}
else
{
button1.Enabled = true;
}
}
private void button1_Click(object sender, EventArgs e)
{
double myTime=0;
if (radioButton1.Checked == true)
{
TimeSpan ts = dateTimePicker1.Value.Subtract(DateTime.Now);
myTime = ts.TotalSeconds;
}
else if (radioButton2.Checked == true)
{
if (!double.TryParse(this.comboBox1.SelectedValue.ToString(), out myTime))
{
MessageBox.Show("定时关机设置失败");
return;
}
else
{
myTime = myTime * 60;
}
}
else
{
MessageBox.Show("定时关机设置失败");
return;
}
var startInfo = new System.Diagnostics.ProcessStartInfo("cmd.exe");
startInfo.UseShellExecute = false;
startInfo.RedirectStandardInput = true ;
startInfo.RedirectStandardOutput = true ;
startInfo.RedirectStandardError = true ;
startInfo.CreateNoWindow = true;
var myProcess = new System.Diagnostics.Process();
myProcess.StartInfo = startInfo;
myProcess.Start();
//myProcess.StandardInput.WriteLine("calc");
DialogResult dr = MessageBox.Show("确认关机吗？", "提示", MessageBoxButtons.OKCancel);
if (dr == DialogResult.OK)
{
//用户选择确认的操作
//MessageBox.Show("您选择的是【确认】");
myProcess.StandardInput.WriteLine("shutdown -a ");
myProcess.StandardInput.WriteLine("shutdown -s -t " + (int)myTime);
int myTime2 = (int)myTime / 60;
MessageBox.Show("定时关机设置成功," + myTime2.ToString() + "分钟后将自动关机");
}
else if (dr == DialogResult.Cancel)
{
//用户选择取消的操作
//MessageBox.Show("您选择的是【取消】");
}
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
button1.Enabled = true;
}
private void button2_Click(object sender, EventArgs e)
{
var startInfo = new System.Diagnostics.ProcessStartInfo("cmd.exe");
startInfo.UseShellExecute = false;
startInfo.RedirectStandardInput = true;
startInfo.RedirectStandardOutput = true;
startInfo.RedirectStandardError = true;
startInfo.CreateNoWindow = true;
var myProcess = new System.Diagnostics.Process();
myProcess.StartInfo = startInfo;
myProcess.Start();
//myProcess.StandardInput.WriteLine("calc");
DialogResult dr = MessageBox.Show("确认取消关机吗？", "提示", MessageBoxButtons.OKCancel);
if (dr == DialogResult.OK)
{
//用户选择确认的操作
//MessageBox.Show("您选择的是【确认】");
myProcess.StandardInput.WriteLine("shutdown -a ");
MessageBox.Show("取消关机成功");
}
else if (dr == DialogResult.Cancel)
{
//用户选择取消的操作
//MessageBox.Show("您选择的是【取消】");
}
}
}
- 界面主要配置 界面主要winfrom原生组件,尽力减少依赖，通过checkbox选择关机类型，时间关机初始默认为当前时间。定时关机依据预先配置节点进行选择。
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要修改
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
this.button1 = new System.Windows.Forms.Button();
this.dateTimePicker1 = new System.Windows.Forms.DateTimePicker();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.radioButton2 = new System.Windows.Forms.RadioButton();
this.radioButton1 = new System.Windows.Forms.RadioButton();
this.comboBox1 = new System.Windows.Forms.ComboBox();
this.button2 = new System.Windows.Forms.Button();
this.groupBox1.SuspendLayout();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(25, 205);
this.button1.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(69, 26);
this.button1.TabIndex = 0;
this.button1.Text = "确定关机";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// radioButton2
//
this.radioButton2.AutoSize = true;
this.radioButton2.Location = new System.Drawing.Point(8, 69);
this.radioButton2.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
this.radioButton2.Name = "radioButton2";
this.radioButton2.Size = new System.Drawing.Size(83, 16);
this.radioButton2.TabIndex = 1;
this.radioButton2.TabStop = true;
this.radioButton2.Text = "倒计时关机";
this.radioButton2.UseVisualStyleBackColor = true;
this.radioButton2.CheckedChanged += new System.EventHandler(this.radioButton2_CheckedChanged);
//
// radioButton1
//
this.radioButton1.AutoSize = true;
this.radioButton1.Location = new System.Drawing.Point(8, 30);
this.radioButton1.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
this.radioButton1.Name = "radioButton1";
this.radioButton1.Size = new System.Drawing.Size(95, 16);
this.radioButton1.TabIndex = 0;
this.radioButton1.TabStop = true;
this.radioButton1.Text = "指定时间关机";
this.radioButton1.UseVisualStyleBackColor = true;
this.radioButton1.CheckedChanged += new System.EventHandler(this.radioButton1_CheckedChanged);
//
// comboBox1
//
this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBox1.FormattingEnabled = true;
this.comboBox1.Items.AddRange(new object[] {
"10分钟 ",
"30分钟",
"60分钟",
"2小时",
"4小时",
"6小时"});
this.comboBox1.Location = new System.Drawing.Point(153, 152);
this.comboBox1.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Size = new System.Drawing.Size(92, 20);
this.comboBox1.TabIndex = 3;
this.comboBox1.SelectedIndexChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged)
}
#endregion
- 后记，别说还真的好用，我自己也经常用。女朋友不用吗？女朋友的梦想是不上班，肯定不会用啦！贴一个马上关机的效果，今天的任务就完成了。
- 拓展，虽然这个程序很小，很简单，但是这个地方有用到子进程喔，面试经常会问的线程和进程有什么不同，它们直接如何通信，都可以从这个地方发散出去。
