static void Main(string[] args)
{
var jimmy = new Person();
jimmy.FirstName = " MENG ";
jimmy.LastName = "LIN ";
jimmy.Introduce();
var Calulater = new Caculater();
var result = Calulater.Add(1, 2);
Console.WriteLine(result);
///30 demo:Arrays
var number = new int[3];
number[0] = 1;
Console.WriteLine(number[0]);
Console.WriteLine(number[1]);
Console.WriteLine(number[2]);
///Demo Strings
var firstName = "MOSH";
var lastName = "howard";
var fullName = firstName + " " + lastName;
var myFullName = string.Format("my name is {0} {1}", firstName, lastName);
var names = new string[3] {
"A", "B", "C"
};
var formattedNames = string.Join(",", names);
Console.WriteLine(formattedNames);
var text = @"Hi John
Look into the following paths
c:\folder1\folders2
c:\QQ\QQ";
var aloha = @"Jimmy is so handsome";
Console.WriteLine(text);
Console.WriteLine(aloha);
//ch4:36 demo:reference types and values types
var a = 1;
var b = 2;
b++;
Console.WriteLine(string.Format("a:{0},b:{1}", a, b));
var array1 = new int[3] {
1, 2, 3
};
var array2 = array1;
array2[0] = 0;
Console.WriteLine(string.Format("array1[1]:{0}=array2[1]:{0}", array1[0], array2[0]));
//37 demo:reference types and values types
var num = 1;
Increment(num);
Console.WriteLine(num);
var app = new Dog()
{
Age = 20
};
MakeOld(app);
Console.WriteLine(app.Age);
}
private void text进货数量_TextChanged(object sender, EventArgs e)
{
text应付金额框.Text = Caculater.Jisuan(text进货数量.Text, Text进货单价框.Text).ToString();
}
