diff --git a/输出菱形 b/输出菱形
new file mode 100644
index 0000000..1ccbf6e
--- /dev/null
+++ b/输出菱形
@@ -0,0 +1,29 @@
+#include<stdio.h>
+int main()
+{
+	int i,j;
+	for(i = 1; i <= 3; i++)
+    {
+		for(j = 1; j <= (4 - i); j++){
+			printf(" ");
+	}
+		for(j = 1;j <= (-1 + 2 * i); j++)
+        {
+			printf("*");
+		}
+		printf("\n");
+	}
+	for(i = 1; i <= 2; i++)
+    {
+ 		for(j = 1;j <= ( 2 + i - 1 );j++)
+         {
+			printf(" ");
+	    }
+		for(j = 1;j <= ( 5 - 2 * i );j++)
+        {
+			printf("*");
+		}
+		printf("\n");
+	}
+return 0;
+}
\ No newline at end of file