关于数组基础的几道例题，非常实用，知识点很多。利用数组输出数据。

第一道题：输出这三名字

string[] name = new string[] {"梅西","卡卡","郑大世" };
            for (int i = 0; i < name.Length -1; i++)
            {
                Console.Write(name[i]+" ");
            }
            Console.Write(name[name.Length -1]);
            Console.ReadLine();  

第二道题：将一个整数数组的每一个元素进行处理，如果元素是正数，将这个元素加一，如果元素是负数，将这个元素再减一

int[] shu=new int[]{1,3,5,-2,-3};
            for (int i = 0; i < shu.Length ; i++)
            {
                if (shu[i]>0)
                {
                    shu[i]++;
                }
                else if (shu[i]<0)
                {
                    shu[i]--;
                }
            }
            for (int i = 0; i < shu.Length ; i++)
            {
                Console.WriteLine(shu [i]);
             
            }                                  //小括号里定义变量，这个变量名只能在小括号内使用
                                               //注意for 循环中i的作用域，除了这个作用域，i就不能用了
                     Console.ReadLine();*/

第三道题：把一组字符串类型的元素进行反转

string[] shu = new string[] {"你好","a","真的","皮球","干嘛","127" };
                     for (int i = 0; i < shu.Length/2; i++)  //在计算机中，7/2=3,因为是整数类型
                     {
                         string temp = shu[i];
                         shu[i] = shu[shu.Length - 1 - i];
                         shu[shu.Length - 1 - i] = temp;
                     }
                     for (int i = 0; i < shu.Length ; i++)
                     {
                         Console.WriteLine(shu[i]);
                     }
                     Console.ReadLine();