、 点投影系数法:程序源代码:private void button1_Click( object sender, EventArgs e)double Xs1 = 14922.9778, Ys1 = 11532.4077, Zs1 = 3230.3383,/ 180, 3 1 = -0.1215 * Math.PI / 180, k 1 = -0.6456 * Math.PI / 180;double Xs2 = 16296.9601, Ys2 = 11524.2256, Zs2 = 3239.6070,/ ...
在windows窗体设计中,点击Button按钮,使计时控件Timer1开始起作用或有效,则在private void button1_Click(object sender, EventArgs e)方法中写入如下代码(___ ). 答案 解析 null 本题来源 题目:在windows窗体设计中,点击Button按钮,使计时控件Timer1开始起作用或有效,则在private void button1_Click(object sender...
private void button1_Click(object sender, System.EventArgs e)参数object sender表示引发事件的对象（其实这里传递的是对象的引用，如果是button1的click事件则sender就是button1）,System.EventArgs e 代表事件的相应信息。下面我们可以看下Button类的事件声明，以Click事件为例。public event EventHandler ...
sender就是事件发出者，这里就是button1,你可以这么写：Button btn = (Button)sender;MessageBox.Show(btn.Text);看看是不是你按的按钮。e呢，就是这个事件，包含事件处理的信息。不同的事件，包含的事件信息内容多少也不同，所以事件类型不尽相同。比如keypress事件，包含了按下的键盘信息。
private void button1_Click(object sender, Args e){int[] a={ 1,2,3,4,5,6};int t,i;t=a[5];for(i=5;i>0;i--)a[i]=a[i-1];a[0]=t;textBox1.Text="";for(i=0;i<6;i++)textBox1.Text+= a[i].ToString();}程序运行后,单击窗口中的button1按钮,在文本框textBox1中显示...
private void button1_Click(object sender,EventArgs e) { if (textBox1.Text.Trim() == "" || textBox2.Text.Trim() == "") { MessageBox.Show("请输入用户名和密码","错误提示"); } else { DB.cn.Open(); OleDbCommand cmd = new OleDbCommand("",DB.cn); string sql = "select RoleName...
【题目】谁能翻译下这段代码private void button1 Click(object sender, EventA rgse)if (textBox1.T ext.T rim()==1| textBox2.T ext.T rim()=="I)MessageBox. Show("请输入用户名和密码","错误提示")else DB.cn.Open()OleDbCommand cmd =new OleDbCommand(1n,DB.cn)string sql = "select Role...
有程序段如下: private void button1_Click(object sender, Args e){int[,] a= new int[4,4];for (inti= 0;i﹤4;i+)for (intj=0;j﹤4;j+)a[i,j]=i*4+j+ 1;ints= 0;for (inti= 0;i﹤4; i+)s=s+a[i,i];textBox1.Text = Convert.ToString(s);}程序运行后,单击窗口中的button1
private void button1_Click(object sender,System.EventArgs e){double x=double.Parse(textBox1.Text);double y=double.Parse(textBox2.Text);double z;if(j.Checked){z=x+y;textBox3.Text=z.ToString();}if(j2.Checked){z=x-y;textBox3.Text=z.ToString();}if(c.Checked){z=x*y;textBox3....
[DllImport("duxie.dll",EntryPoint = "lala",CharSet = CharSet.None)]public static extern string lala();private void button1_Click(object sender,RoutedEventArgs e){string a = lala();///此处报错}错误为:Attempted to read or write protected memory.Attempted to read or write protected memory.另...