diff --git a/菱形.cpp b/菱形.cpp
new file mode 100644
index 0000000..0082e02
--- /dev/null
+++ b/菱形.cpp
@@ -0,0 +1,37 @@
+//���� 
+#include<stdio.h>        
+
+void pr_start(int _num)
+{
+    int n=0;
+    int i = 0;
+    for (n = 1; n <= 2*_num; n++)         
+    {
+        int temp = n;
+        if (n > _num)
+        {
+            temp -= 2 * (n - _num);
+        }
+        for (i = 1; i < 2 * _num; i++)
+        {
+            if ((i>=(_num - temp + 1 )) && (i<=(temp + _num-1))) 
+            {
+                printf("*");
+            }
+            else
+            {
+                printf(" ");
+            }
+        }
+        printf("\n");
+    }
+}
+
+int main()
+{
+    int num = 0;
+    printf("��������Ҫ�����Σ�");
+    scanf("%d", &num);
+    pr_start(num);
+    return 0;
+}