void B_Help_Click(object sender, EventArgs e)
{
MyDialog dlg = new MyDialog();
String helpText = "Please Write in C Language grammer. ex>int a[5]={1,2,3,4,5};\r\n" +
"you can omit the variable name. ex>int [5]={1,2,3,4,5};\r\n" +
"you can write only one value for an array having same values." +
"ex> int [5]=1;\r\n" +
"if you want to swap, insert swap@ before variable name. ex> int swap@a=1;\r\n";
dlg.AddText(helpText);
dlg.ShowDialog();
}