Add step6

step6

@@ -0,0 +1,44 @@
+#include<stdio.h>
+#include<string.h>
+#define size 3
+int main()
+{
+	struct Student
+	{
+		int class;//[size];
+		int number, score;
+		int ans;
+		int score1, score2, all_score;//三门成绩分别为score，score1，score2，all_score为了求和
+	}Student[size];
+	Student[0].class = 11;
+	Student[1].class = 11;
+	Student[2].class = 12;
+	Student[0].number = 10001;
+	Student[1].number = 10002;
+	Student[2].number = 10004;
+	Student[0].score = 90; Student[0].score1 = 90; Student[0].score2 = 90;
+	Student[1].score = 83; Student[1].score1 = 84; Student[1].score2 = 85;
+	Student[2].score = 83; Student[2].score1 = 70; Student[2].score2 = 90;
+	int count1;
+	int num;
+	//此处假设已经有学生信息，学号不予修改
+	printf("请输入你想要修改的学生的学号");
+	scanf_s("%d", &num);
+
+	//scanf_s("%d", &Student[size].class);
+	for (count1 = 0; count1 < size; count1++)
+	{
+		if (Student[count1].number == num)
+		{
+			scanf_s("%d", &Student[count1].class);
+			scanf_s("%d%d%d", &Student[count1].score, &Student[count1].score1, &Student[count1].score2);
+		}
+	}
+	for (int count2 = 0; count2 < size; count2++)
+	{
+		printf("%d %d ", Student[count2].class,Student[count2].number);
+		printf("%d %d %d", Student[count2].score, Student[count2].score1, Student[count2].score2);//输入学生信息
+		printf("\n");
+	}
+	return 0;
+}