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夜光序言：

 

废铁之所以能成为有用的钢，是因为它经得起痛苦的磨炼。

 

 

 

 

 

 

 

 

 

正文：

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ConsoleApp3{    class Program    {        /// 
        /// 夜光：写一个方法AddOne，该方法传入一个整数n，要求对该数+1，并且不通过返回值返回结果        /// 
        ///         static void AddOne(int n)        {            n++;        }        static void Main(string[] args)        {            int m = 3;            AddOne(m); // m+1            Console.WriteLine(m);  //4            Console.ReadLine();        }    }}

 

 

 

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ConsoleApp3{    class Program    {        /// 
        /// 夜光：写一个方法AddOne，该方法传入一个整数n，要求对该数+1，并且不通过返回值返回结果        /// 
        ///         static void AddOne(ref int n)        {            n++;  // *(1001)++   如果C语言学的比较好，对指针有较深理解，就很好            Console.WriteLine(n);        }        static void Swap(ref int a,ref int b)        {            int c = a;            a = b;            b = c;        }        static void Main(string[] args)        {            int m, n;            m = 3;            n = 5;            Swap(ref m ,ref n);            Console.WriteLine("m={0},n={1}", m, n);            /*int m = 3;            AddOne(m); // m+1            Console.WriteLine(m);  //4            Console.ReadLine();*/            Console.ReadLine();        }    }}

 

 

 

 

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace 功能封装{    class Program    {        /// 
        ///         /// 
        /// 
           static int[] Input()        {            Console.WriteLine("请输入数组长度：");            int n = int.Parse(Console.ReadLine());            int[] a = new int[n];            for(int i = 0; i < a.Length; i++)            {                Console.WriteLine("第{0}个元素", i);                a[i] = int.Parse(Console.ReadLine());            }            return a;        }        /// 
        ///         /// 
        ///         static void Output(int[] a)        {            Console.WriteLine("----------------------------");            for (int i = 0; i< a.Length; i++)            {                Console.WriteLine("a[{0}] = {1}", i, a[i]);            }        }        /// 
        ///         /// 
        ///         /// 
           static int Sum(int[] a)        {            int s = 0;            for (int i = 0; i < a.Length; i++)            {                s += a[i];            }            /*            Console.WriteLine("元素之和为：{0}",s);*/            return s;        }        static void Main(string[] args)        {            int[] b = Input();            Output(b);            int n = Sum(b);            Console.WriteLine("元素之和为：{0}", n);            Console.ReadLine();        }    }}

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace 功能封装{    class Program    {        /// 
        ///         /// 
        /// 
           static int[] Input()        {            Console.WriteLine("请输入数组长度：");            int n = int.Parse(Console.ReadLine());            int[] a = new int[n];            for(int i = 0; i < a.Length; i++)            {                Console.WriteLine("第{0}个元素", i);                a[i] = int.Parse(Console.ReadLine());            }            return a;        }        /// 
        ///         /// 
        ///         static void Output(int[] a)        {            Console.WriteLine("----------------------------");            for (int i = 0; i< a.Length; i++)            {                Console.WriteLine("a[{0}] = {1}", i, a[i]);            }        }        /// 
        ///         /// 
        ///         /// 
           static int Sum(int[] a)        {            int s = 0;            for (int i = 0; i < a.Length; i++)            {                s += a[i];            }            /*            Console.WriteLine("元素之和为：{0}",s);*/            return s;        }        /// 
        ///         /// 
        ///         /// 
           static string Merge(string[] sa)        {            string m = "";            for(int i = 0; i < sa.Length; i++)            {                m += sa[i];            }            return m;        }        static void Main(string[] args)        {            int[] b = Input();            Output(b);            int n = Sum(b);            Console.WriteLine("元素之和为：{0}", n);            string m = Merge(new String[] {"China","Japan","Korea"});            Console.WriteLine(m);            Console.ReadLine();        }    }}

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace 功能封装{    class Program    {        /// 
        /// 夜光：输入        /// 
        /// 
           static int[] Input()        {            Console.WriteLine("请输入数组长度：");            int n = int.Parse(Console.ReadLine());            int[] a = new int[n];            for(int i = 0; i < a.Length; i++)            {                Console.WriteLine("第{0}个元素", i);                a[i] = int.Parse(Console.ReadLine());            }            return a;        }        /// 
        /// 夜光：输出        /// 
        ///         static void Output(int[] a)        {            Console.WriteLine("----------------------------");            for (int i = 0; i< a.Length; i++)            {                Console.WriteLine("a[{0}] = {1}", i, a[i]);            }        }        /// 
        ///         /// 
        ///         /// 
           static int Sum(int[] a)        {            int s = 0;            for (int i = 0; i < a.Length; i++)            {                s += a[i];            }            /*            Console.WriteLine("元素之和为：{0}",s);*/            return s;        }        /// 
        /// 夜光：拼接字符串        /// 
        ///         /// 
           static string Merge(string[] sa)        {            string m = "";            for(int i = 0; i < sa.Length; i++)            {                m += sa[i];            }            return m;        }        /// 
        /// 夜光        /// 
        /// 
           static void StringCount(string s,ref int zm,ref int sz,ref int ts)        {            zm = 0;            sz = 0;            ts = 0;            for(int i = 0; i < s.Length; i++)            {                if (Char.IsLetter(s[i]))                {                    zm++;                }                else if(Char.IsDigit(s[i]))                {                    sz++;                }                else                {                    ts++;                }            }        }         static void Main(string[] args)        {            /* int[] b = Input();             Output(b);             int n = Sum(b);             Console.WriteLine("元素之和为：{0}", n);             string m = Merge(new String[] {"China","Japan","Korea"});             Console.WriteLine(m); */            int zm, sz, ts;            sz = zm = ts = 0;            StringCount("This is 123 test~~", ref zm, ref sz, ref ts);            Console.WriteLine("ZM={0},SZ={1},TS={2}", zm, sz, ts);            Console.ReadLine();        }    }}

 

 

 

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace 功能封装{    class Program    {        /// 
        /// 夜光：输入        /// 
        /// 
           static int[] Input()        {            Console.WriteLine("请输入数组长度：");            int n = int.Parse(Console.ReadLine());            int[] a = new int[n];            for(int i = 0; i < a.Length; i++)            {                Console.WriteLine("第{0}个元素", i);                a[i] = int.Parse(Console.ReadLine());            }            return a;        }        /// 
        /// 夜光：输出        /// 
        ///         static void Output(int[] a)        {            Console.WriteLine("----------------------------");            for (int i = 0; i< a.Length; i++)            {                Console.WriteLine("a[{0}] = {1}", i, a[i]);            }        }        /// 
        ///         /// 
        ///         /// 
           static int Sum(int[] a)        {            int s = 0;            for (int i = 0; i < a.Length; i++)            {                s += a[i];            }            /*            Console.WriteLine("元素之和为：{0}",s);*/            return s;        }        /// 
        /// 夜光：拼接字符串        /// 
        ///         /// 
           static string Merge(string[] sa)        {            string m = "";            for(int i = 0; i < sa.Length; i++)            {                m += sa[i];            }            return m;        }        /// 
        /// 夜光        /// 
        /// 
           static void StringCount(string s,ref int zm,ref int sz,ref int ts)        {            zm = 0;            sz = 0;            ts = 0;            for(int i = 0; i < s.Length; i++)            {                if (Char.IsLetter(s[i]))                {                    zm++;                }                else if(Char.IsDigit(s[i]))                {                    sz++;                }                else                {                    ts++;                }            }        }        /// 
        /// 写一个循环，夜光：找出最大的数        /// 
        ///         /// 
           static int Max(int[] a)        {            int index = 0;  //我们先定义一个下标            for(int i = 1; i < a.Length; i++)  //从1开始，和那个最大的进行比较            {                if(a[i] > a[index])                {                    index = i;                }            }            return index;        }        static void Main(string[] args)        {            int index = Max(new int[] { 1, 3, 5, 7, 9 });            Console.WriteLine(index);            /* int[] b = Input();             Output(b);             int n = Sum(b);             Console.WriteLine("元素之和为：{0}", n);             string m = Merge(new String[] {"China","Japan","Korea"});             Console.WriteLine(m); *//*            int zm, sz, ts;            sz = zm = ts = 0;            StringCount("This is 123 test~~", ref zm, ref sz, ref ts);            Console.WriteLine("ZM={0},SZ={1},TS={2}", zm, sz, ts);*/            Console.ReadLine();        }    }}

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace 功能封装{    class Program    {        /// 
        /// 夜光：输入        /// 
        /// 
           static int[] Input()        {            Console.WriteLine("请输入数组长度：");            int n = int.Parse(Console.ReadLine());            int[] a = new int[n];            for(int i = 0; i < a.Length; i++)            {                Console.WriteLine("第{0}个元素", i);                a[i] = int.Parse(Console.ReadLine());            }            return a;        }        /// 
        /// 夜光：输出        /// 
        ///         static void Output(int[] a)        {            Console.WriteLine("----------------------------");            for (int i = 0; i< a.Length; i++)            {                Console.WriteLine("a[{0}] = {1}", i, a[i]);            }        }        /// 
        ///         /// 
        ///         /// 
           static int Sum(int[] a)        {            int s = 0;            for (int i = 0; i < a.Length; i++)            {                s += a[i];            }            /*            Console.WriteLine("元素之和为：{0}",s);*/            return s;        }        /// 
        /// 夜光：拼接字符串        /// 
        ///         /// 
           static string Merge(string[] sa)        {            string m = "";            for(int i = 0; i < sa.Length; i++)            {                m += sa[i];            }            return m;        }        /// 
        /// 夜光        /// 
        /// 
           static void StringCount(string s,ref int zm,ref int sz,ref int ts)        {            zm = 0;            sz = 0;            ts = 0;            for(int i = 0; i < s.Length; i++)            {                if (Char.IsLetter(s[i]))                {                    zm++;                }                else if(Char.IsDigit(s[i]))                {                    sz++;                }                else                {                    ts++;                }            }        }        /// 
        /// 写一个循环，夜光：找出最大的数        /// 
        ///         /// 
           static int Max(int[] a)        {            int index = 0;  //我们先定义一个下标            for(int i = 1; i < a.Length; i++)  //从1开始，和那个最大的进行比较            {                if(a[i] > a[index])                {                    index = i;                }            }            return index;        }        /// 
        ///         /// 
        ///         ///         ///         static void Max2D(int[,] a, ref int row,ref int col)        {            row = 0;            col = 0;            for(int i = 0; i < a.GetLength(0); i++)            {                for(int j = 0; j < a.GetLength(1); j++)                {                    if (a[i, j] > a[row, col])                    {                        row = i;                        col = j;                    }                }            }        }        static void Main(string[] args)        {            int row = 0;            int col = 0;            Max2D(new int[,]{                {1,2,3 },                {0,2,4 },                {9,7,3 }            },ref row,ref col);            Console.WriteLine("row={0},col={1}", row, col);/*            int index = Max(new int[] { 1, 3, 5, 7, 9 });            Console.WriteLine(index);*/            /* int[] b = Input();             Output(b);             int n = Sum(b);             Console.WriteLine("元素之和为：{0}", n);             string m = Merge(new String[] {"China","Japan","Korea"});             Console.WriteLine(m); *//*            int zm, sz, ts;            sz = zm = ts = 0;            StringCount("This is 123 test~~", ref zm, ref sz, ref ts);            Console.WriteLine("ZM={0},SZ={1},TS={2}", zm, sz, ts);*/            Console.ReadLine();        }    }}

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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