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作业:12.23

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   行i  列j  i与j关系
●●●●● 1  5
●●●●● 2  5
●●●●● 3  5
●●●●● 4  5
●●●●● 5  5

 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5  6 namespace ConsoleApplication1 7 { 8     class Class1 9     {10         //五行五列11         static void Main(string[] args)12         {13             for (int i = 1; i <= 5;i++ )14             {15                 for (int j = 1; j <= 5;j++ )16                 {17                     Console.Write("*");18                 }19                 Console.WriteLine();20             }21         }22     }23 }

●                1  1  j<=i
●●              2  2
●●●            3  3
●●●●           4  4
●●●●●         5  5

 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5  6 namespace ConsoleApplication1 7 { 8     class Class2 9     {10         static void Main(string[] args)11         {12             for (int i = 1; i <= 5;i++ )13             {14                 for (int j = 1; j <= i;j++ )15                 {16                     Console.Write("*");17                 }18                 Console.WriteLine();19             }20         }21     }22 }

●●●●●         1  5  j<=6-i  
●●●●           2  4
●●●            3  3
●●              4  2
●                5  1

 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5  6 namespace ConsoleApplication1 7 { 8     class Class3 9     {10         static void Main(string[] args)11         {12             for (int i = 1; i <= 5;i++ )13             {14                 for (int j = 1; j <= 6 - i;j++ )15                 {16                     Console.Write("*");17                 }18                 Console.WriteLine();19             }20         }21     }22 }

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 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5  6 namespace ConsoleApplication1 7 { 8     class Class5 9     {10         static void Main(string[] args)11         {12             for (int i = 1; i <= 5;i++ )13             {14                 for (int j = 1; j <= 5 - i;j++ )15                 {16                     Console.Write(" ");17                 }18                 for (int m = 1; m <= i;m++ )19                 {20                     Console.Write("*");21                 }22                 Console.WriteLine();23             }24         }25     }26 }

 

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 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5  6 namespace ConsoleApplication1 7 { 8     class Class4 9     {10         static void Main(string[] args)11         {12             for (int i = 1; i <= 5;i++ )13             {14                 for (int m = 1; m <= 5 - i;m++ )15                 {16                     Console.Write(" ");17                 }18                 for (int j = 1; j <= (2 * i - 1);j++ )19                 {20                     Console.Write("*");21                 }22                 Console.WriteLine();23             }24         }25     }26 }

 

作业:12.23