diff --git a/README.md b/README.md
index 7c0e65f..25afb4a 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,83 @@ int main( )
 }
 
 
+#include <stdio.h> 
+int main( ) 
+{ struct Student
+	{
+		int xh;
+		float gs;
+		float dw;
+		float yy;
+		float zcj;	
+	} student1,student2,student3;
+	scanf("%d%f%f%f",&student1.xh,&student1.gs,&student1.dw,&student1.yy);
+	scanf("%d%f%f%f",&student2.xh,&student2.gs,&student2.dw,&student2.yy);
+	scanf("%d%f%f%f",&student3.xh,&student3.gs,&student3.dw,&student3.yy);
+	student1.zcj=student1.gs+student1.dw+student1.yy;
+	student2.zcj=student2.gs+student2.dw+student2.yy;
+	student3.zcj=student3.gs+student3.dw+student3.yy;
+	printf("学号  %d  高数成绩  %.1f  大学物理成绩  %.1f  英语成绩  %.1f  总成绩  %.1f\n",student1.xh,student1.gs,student1.dw,student1.yy,student1.zcj);
+	printf("学号  %d  高数成绩  %.1f  大学物理成绩  %.1f  英语成绩  %.1f  总成绩  %.1f\n",student2.xh,student2.gs,student2.dw,student2.yy,student2.zcj);
+	printf("学号  %d  高数成绩  %.1f  大学物理成绩  %.1f  英语成绩  %.1f  总成绩  %.1f\n",student3.xh,student3.gs,student3.dw,student3.yy,student3.zcj);
+}
+
+#include <stdio.h> 
+int main( ) 
+{ 
+	int num_spaces =30;
+	printf("%*s1.Input\n",num_spaces," ");
+	printf("%*s2.Output\n",num_spaces," ");
+	printf("%*s3.Order\n",num_spaces," ");
+	printf("%*s4.Quit\n",num_spaces," ");
+	char a;
+	again:a=getchar();
+	switch(a)
+	{
+		case'i':printf("Please input info of the three students:");
+				struct Student
+			{
+			int xh;
+			float gs;
+			float dw;
+			float yy;
+			float zcj;
+			float pjf;	
+			} student1,student2,student3,studenttemp;
+			scanf("%d%f%f%f",&student1.xh,&student1.gs,&student1.dw,&student1.yy);
+			scanf("%d%f%f%f",&student2.xh,&student2.gs,&student2.dw,&student2.yy);
+			scanf("%d%f%f%f",&student3.xh,&student3.gs,&student3.dw,&student3.yy);
+			student1.zcj=student1.gs+student1.dw+student1.yy;
+			student2.zcj=student2.gs+student2.dw+student2.yy;
+			student3.zcj=student3.gs+student3.dw+student3.yy;
+			student1.pjf=student1.zcj/3;
+			student2.pjf=student2.zcj/3;
+			student3.pjf=student3.zcj/3;
+			if(student2.zcj>student3.zcj)
+			{
+                studenttemp = student2;
+                student2 = student3;
+                student3 = studenttemp;
+            }
+            if(student1.zcj>student3.zcj) 
+			{
+                studenttemp = student1;
+                student1 = student3;
+                student3 = studenttemp;
+            }
+            if(student1.zcj>student2.zcj)
+			 {
+                studenttemp = student1;
+                student1 = student2;
+                student2 = studenttemp;
+		   	}
+			printf("%d,%.1f,%.1f\n%d,%.1f,%.1f\n%d,%.1f,%.1f\n",student1.xh,student1.zcj,student1.pjf,student2.xh,student2.zcj,student2.pjf,student3.xh,student3.zcj,student3.pjf);
+			break;
+		case'o':printf("You are trying to Output info");break;
+		case'm':printf("You are trying to Make things orderd");break;
+		case'q':printf("You are about to Quit");break;
+		case'\n':printf("\n");break;
+		default:printf("Wrong input");
+	}
+	goto again;
+}