diff --git a/xiangmu3.c b/xiangmu3.c
new file mode 100644
index 0000000..566f426
--- /dev/null
+++ b/xiangmu3.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+int main()
+{
+  printf("                              1.Input\n                              2.Output\n                              3.Order\n                              4.Quit\n");
+  
+  char a;
+  for(;;)
+  {
+  a=getchar();
+  switch(a)
+  {
+  case'i': printf("Please input info of the three students:\n");
+  struct Student
+  {
+  	int n;
+  	float x;
+  	float y;
+  	float z;
+  	float s;
+	float w;
+  };
+  int i,j,k;
+  struct Student stu[3],t;
+  for(i=0;i<3;i++)
+  {
+  	scanf("%d%f%f%f",&stu[i].n,&stu[i].x,&stu[i].y,&stu[i].z);
+  }
+  stu[0].s=stu[0].x+stu[0].y+stu[0].z;
+  stu[1].s=stu[1].x+stu[1].y+stu[1].z;
+  stu[2].s=stu[2].x+stu[2].y+stu[2].z;
+  stu[0].w=stu[0].s/3;
+  stu[1].w=stu[1].s/3;
+  stu[2].w=stu[2].s/3;
+  for(i=0;i<2;i++)
+  {
+  	k=i;
+  	for(j=i+1;j<3;j++)
+  	{
+  	  if(stu[k].w<stu[j].w) 
+		 k=j;
+	  	
+	}
+	t=stu[k];stu[k]=stu[i];stu[i]=t;
+  }
+  for(j=0;j<3;j++)
+  {
+  	printf("学号  %d  总成绩  %.1f  平均成绩  %.1f\n",stu[j].n,stu[j].s,stu[j].w);
+  }
+  break;
+  
+  case'm': printf("You are trying to Make things ordered");break;
+  case'q': printf("You are about to Quit");break;
+  case'\n': printf("\n");break;
+  default: printf("Wrong input");
+  }
+  }
+		     
+	   
+}
+