ADD file via upload

作业2.3.c

@@ -0,0 +1,41 @@
+#include<stdio.h>
+int main()
+{struct Student
+	{
+		int num;
+		float score1;
+		float score2;
+		float score3;
+		float all;
+		float aver;
+	}student1,student2,student3;
+    char c;
+	printf("                              1.Input\n");
+	printf("                              2.Output\n");
+	printf("                              3.Order\n");
+	printf("                              4.Quit\n");
+	c=getchar();
+	switch(c)
+		{
+			case 'i':printf("Please input info of the three students:\n");
+	scanf("%d%f%f%f",&student1.num,&student1.score1,&student1.score2,&student1.score3);
+	scanf("%d%f%f%f",&student2.num,&student2.score1,&student2.score2,&student2.score3);
+	scanf("%d%f%f%f",&student3.num,&student3.score1,&student3.score2,&student3.score3);
+	student1.all = student1.score1 + student1.score2 + student1.score3;
+	student1.aver=student1.all/3;
+	student2.all = student2.score1 + student2.score2 + student2.score3;
+	student2.aver=student2.all/3;
+	student3.all = student3.score1 + student3.score2 + student3.score3;
+	student3.aver=student3.all/3;
+	printf("%d %.1f %.1f\n",student3.num,student3.all,student3.aver);
+	printf("%d %.1f %.1f\n",student1.num,student1.all,student1.aver);
+	printf("%d %.1f %.1f\n",student2.num,student2.all,student2.aver);
+	
+	break; 
+			case 'o':printf("You are trying to Output info");break;
+			case 'm':printf("You are trying to Make things ordered");break;
+			case 'q':printf("You are about to Quit");break;
+			default:printf("Wrong input");break;
+		}
+}
+