标签：style class blog code java http
1
声明两个变量：int n1 = 10,n2= 20,要求将两个变量叫唤，最后输出n1为20,n2为10.
(扩展*: 不使用第三个变量如何交换)
基本方法
private static void BasicMethod() { int n1 = 10; int n2 = 20; Console.WriteLine("n1={0}", n1); Console.WriteLine("n2={0}", n2); int tem = n1; Console.WriteLine("tem = n1, 此时tem = {0}", n1); n1 = n2; Console.WriteLine("n1 = n2, 此时 n1 = {0}", n2); n2 = tem; Console.WriteLine("n2 = tem, 此时 n2 = {0}", n2); Console.WriteLine("经过交换之后 n1 = {0},n2= {1}", n1, n2); Console.WriteLine("点击任意键结束程序..."); Console.ReadLine(); }
扩展方法
private static void ExpandMethod() { int n1 = 10; int n2 = 20; Console.WriteLine("n1={0}", n1); Console.WriteLine("n2={0}", n2); n1 = n1 + n2; Console.WriteLine("n1 = n1 + n2;此时n1={0}", n1); n2 = n1 - n2; Console.WriteLine("n2 = n1 - n2;此时n1={0},n2={1}", n1, n2); n1 = n1 - n2; Console.WriteLine("n1 = n1 - n2;此时n1={0},n2={1}", n1, n2); Console.WriteLine("经过交换之后 n1 = {0},n2= {1}", n1, n2); Console.WriteLine("点击任意键结束程序..."); Console.ReadLine(); }
标签：style class blog code java http
原文地址：http://www.cnblogs.com/sediment/p/3779609.html
