static void Main(string[] args)
{
int a = 100;
int b = 200;
int ret;
NumberManipulator n = new NumberManipulator();
ret = n.FindMax(a, b);
Console.WriteLine("最大值：{0}", ret);
Console.WriteLine("6的阶乘是{0}", n.factorial(6));
Console.WriteLine("7的阶乘是{0}", n.factorial(7));
int c = 222;
int d = 333;
Console.WriteLine("按值传参交换之前的c是=>{0}", c);
Console.WriteLine("按值传参交换之前的d是=>{0}", d);
n.swap(c, d);
Console.WriteLine("按值传参交换之后的c是=>{0}", c);
Console.WriteLine("按值传参交换之后的d是=>{0}", d);
int e = 123;
int f = 321;
Console.WriteLine("按引用传递参数交换之前的e是=>{0}", e);
Console.WriteLine("按引用传递参数交换之前的f是=>{0}", f);
n.refSwap(ref e, ref f);
Console.WriteLine("按引用传递参数交换之后的e是=>{0}", e);
Console.WriteLine("按引用传递参数交换之后的f是=>{0}", f);
int g = 158;
Console.WriteLine("按输出传递参数调用函数之前的g是=>{0}", g);
n.getValue(out g);
Console.WriteLine("按输出传递参数调用函数之后的g是=>{0}", g);
int aa, bb;
n.getNoValue(out aa, out bb);
Console.WriteLine("按输出传递参数调用函数之后的aa=>{0},bb是=>{1}", aa, bb);
}
