doh-csharp-2.basic.md

@@ -134,3 +134,29 @@ foreach (int elem in arr)
 ```  
 
 <br />
+
+## 문제풀이  
+>for문을 이용한 별찍기  
+
+```c#  
+static void Main(string[] args)             
+{                                           
+    for (int i = 0; i < 5; i++)             //*
+    {                                       //**
+        for (int j = 0; j < i + 1; j++)     //***
+        {                                   //****
+            Console.Write("*");             //*****
+        }                           
+        Console.WriteLine();
+    }
+
+    for (int i = 0; i < 5; i++)             //*****
+    {                                       //****
+        for (int j = 5; j > i; j--)         //***
+        {                                   //**
+            Console.Write("*");             //*
+        }
+        Console.WriteLine();
+    }
+}
+```
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