diff --git a/打印菱形.cpp b/打印菱形.cpp
new file mode 100644
index 0000000..f7cabfa
--- /dev/null
+++ b/打印菱形.cpp
@@ -0,0 +1,27 @@
+#include<stdio.h>
+void out(int n)
+{
+	for(int i=1;i<=n;i++)
+	{
+		for(int j=1;j<=n-i;j++)
+		    printf(" ");
+		for(int j=1;j<=2*i-1;j++)
+		    printf("*");
+		printf("\n");
+	}
+	for(int i=n-1;i>=1;i--)
+	{
+		for(int j=1;j<=n-i;j++)
+		    printf(" ");
+		for(int j=1;j<=2*i-1;j++)
+		    printf("*");
+		printf("\n");	
+	}	
+}
+int main()
+{
+	int n;
+	scanf("%d",&n);
+    out(n);
+	return 0;
+}