diff --git a/suiji.c b/suiji.c
new file mode 100644
index 0000000..b7672df
--- /dev/null
+++ b/suiji.c
@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include <time.h>
+#include <stdlib.h>
+void swap(int *a,int *b){//交换函数 
+	int temp;
+	temp=*a;
+	*a=*b;
+	*b=temp;
+}
+void shuffle(int *array,int size){ //随机交换 
+	int i;
+	int j;
+	srand(time(NULL));
+	for(i=size-1;i>0;i--){
+		j=rand()%(i+1);
+		swap(&array[i],&array[j]);
+	}
+}
+void fillBoard(int board[9][9])
+{
+    int arr[9] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
+    int positions[9];//位置 从0到8 
+    int i,j;
+    for (i=0;i<9;i++)
+    {
+        positions[i]=i;
+    }
+	//每三行 
+    for (i=0;i<9;i+= 3)
+    {
+        shuffle(arr,9);//随机0-9 随机位置 
+        shuffle(positions,9);
+        for (j = 0; j < 3; j++)
+        {//每三行填充 
+            board[i][positions[j]] = arr[j];
+            board[i+1][positions[j+3]] = arr[j+3];
+            board[i+2][positions[j+6]] = arr[j+6];
+        }
+    }
+}
+
+void print(int board[9][9]){//格式化输出函数 
+	printf("|-----------------------|\n");
+	int i=0,j=0,s=0,k=0;
+	for(i=0;i<9;++i){
+		for(j=0;j<9;j++){
+			while(j%3==0){
+				printf("| ");
+				break;
+			}
+			printf("%d ",board[i][j]);
+		}
+		printf("|\n");
+		while((i+1)%3==0){
+			printf("|-----------------------|\n");
+			break;
+		}
+	}
+}
+int main(){ 
+	int board[9][9]={0};//初始化 
+	fillBoard(board);
+	
+	print(board);
+	return 0;
+}