From 434913bd3e857128e22750eadcbf5fac935b8a67 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BD=AD=E6=AD=A3=E8=B4=A2?= <3047498954@qq.com>
Date: Wed, 9 Jan 2019 11:11:06 +0800
Subject: [PATCH] second commit

---
 ...�生信息、计算、增加学生信息.c | 124 ++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 输入学生信息、计算、增加学生信息.c

diff --git a/输入学生信息、计算、增加学生信息.c b/输入学生信息、计算、增加学生信息.c
new file mode 100644
index 0000000..87cec89
--- /dev/null
+++ b/输入学生信息、计算、增加学生信息.c
@@ -0,0 +1,124 @@
+void select()
+{
+	FILE *fp,*ff;
+	int i,n;
+	if((fp=fopen("a.txt","w"))==NULL)
+	{
+		printf("file open error");
+		exit(0);
+	}
+	printf("�������λѧ������Ϣ\n");
+	scanf("%d",&n);
+	for(i=0;i<n;i++)
+	{
+	printf("������ѧ��:\n");
+	scanf("%d",&student[i].id);
+	fprintf(fp,"%d ",student[i].id);
+	printf("������༶:\n");
+	scanf("%d",&student[i].class);
+	fprintf(fp,"%d ",student[i].class);
+	printf("����������:\n");
+	scanf("%s",&student[i].name);
+	fprintf(fp,"%s ",student[i].name);
+	printf("�����뿪ʼ�ϻ�ʱ�䣨Сʱ��:\n");
+	scanf("%d",&student[i].time_beginhour);
+	fprintf(fp,"%d ",student[i].time_beginhour);
+	printf("�����뿪ʼ�ϻ�ʱ�䣨���ӣ�:\n");
+	scanf("%d",&student[i].time_beginminute);
+	fprintf(fp,"%d ",student[i].time_beginminute);
+	printf("����������ϻ�ʱ�䣨Сʱ��:\n");
+	scanf("%d",&student[i].time_endhour);
+	fprintf(fp,"%d ",student[i].time_endhour);
+	printf("����������ϻ�ʱ�䣨���ӣ�:\n");
+	scanf("%d",&student[i].time_endminute);
+	fprintf(fp,"%d\n",student[i].time_endminute);
+    }
+	if(fclose(fp))
+	{
+		printf("Can not close the file\n");
+		exit(0);
+	}
+	ff=fopen("b.txt","w");
+	fprintf(ff,"%d",i);/*���ѧ������*/ 
+	fclose(ff);
+	printf("����ɹ�");
+}
+void count()
+{
+
+	FILE *fp;
+	int id,i=0,j,money;
+		printf("���������ѧ��\n");
+		scanf("%d",&id);
+	if((fp=fopen("a.txt","r"))==NULL)
+	{
+		printf("file open error");
+		exit(0);
+	}
+	while(!feof(fp))
+	{
+		fscanf(fp,"%d%d%s%d%d%d%d",&student[i].id,&student[i].class,&student[i].name,&student[i].time_beginhour,&student[i].time_beginminute,&student[i].time_endhour,&student[i].time_endminute);
+		i++;
+		j=i;
+	}
+	for(i=0;i<=j;i++)
+	{
+	if(student[i].id==id)
+	{
+	printf("ѧ�ţ�%d\n",student[i].id);
+	printf("�༶��%d\n",student[i].class);
+	printf("������%s\n",student[i].name);
+	printf("��ʼ�ϻ�ʱ�䣻%d:%d\n",student[i].time_beginhour,student[i].time_beginminute);
+	printf("�����ϻ�ʱ�䣻%d:%d\n",student[i].time_endhour,student[i].time_endminute);
+	money=(student[i].time_endhour-student[i].time_beginhour)*60*m+(student[i].time_endminute-student[i].time_beginminute)*m;
+    }
+    }
+    if(fclose(fp))
+	{
+		printf("Can not close the file\n");
+		exit(0);
+	}
+	printf("�����ϻ��ķ���Ϊ:%d",money);
+}
+void add()
+{
+	int i;
+	int n,j;
+	printf("������Ҫ���Ӷ����˵���Ϣ\n");
+	scanf("%d",&n);
+	FILE *fp,*ff;
+	ff=fopen("b.txt","r");
+	fscanf(ff,"%d",&i);
+	fclose(ff);
+	fp=fopen("a.txt","a");
+	printf("������Ҫ���ӵ�ѧ����Ϣ\n");
+	for(j=1;j<=n;j++)
+	{
+    printf("������ѧ��:\n");
+    scanf("%d",&student[i+j].id);
+	fprintf(fp,"%d ",student[i+j].id);
+	printf("������༶:\n");
+	scanf("%d",&student[i+j].class);
+	fprintf(fp,"%d ",student[i+j].class);
+	printf("����������:\n");
+	scanf("%s",&student[i+j].name);
+	fprintf(fp,"%s ",student[i+j].name);
+	printf("�����뿪ʼ�ϻ�ʱ�䣨Сʱ��:\n");
+	scanf("%d",&student[i+j].time_beginhour);
+	fprintf(fp,"%d ",student[i+j].time_beginhour);
+	printf("�����뿪ʼ�ϻ�ʱ�䣨���ӣ�:\n");
+	scanf("%d",&student[i+j].time_beginminute);
+	fprintf(fp,"%d ",student[i+j].time_beginminute);
+	printf("����������ϻ�ʱ�䣨Сʱ��:\n");
+	scanf("%d",&student[i+j].time_endhour);
+	fprintf(fp,"%d ",student[i+j].time_endhour);
+	printf("����������ϻ�ʱ�䣨���ӣ�:\n");
+	scanf("%d",&student[i+j].time_endminute);
+	fprintf(fp,"%d\n",student[i+j].time_endminute);
+    }
+	fclose(fp);
+	printf("����ɹ�");
+	ff=fopen("b.txt","w");
+	fprintf(ff,"%d",i+n);
+	fclose(ff);
+}