From d05df3a21cff0191b73850e5556348b1d5f624e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9E=97=E9=9B=A8?= <389919422@qq.com>
Date: Thu, 10 Jan 2019 21:19:17 +0800
Subject: [PATCH] first commit

---
 hhh3.c | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 hhh3.c

diff --git a/hhh3.c b/hhh3.c
new file mode 100644
index 0000000..aeae27e
--- /dev/null
+++ b/hhh3.c
@@ -0,0 +1,149 @@
+void shanchu()	
+{
+	system("cls");
+	struct txl *p;
+	char name[20],mail[30];
+	p=phone;
+	int i,j=0,m=0;
+	FILE *ptr1;
+	ptr1=fopen("sto3.txt","rb");
+		if(ptr1==NULL)
+		{
+			printf("通讯录为空\n");//判断是否有储存文件，没有通讯录就返回菜单。 
+			return; 
+		}
+	rewind(ptr1);
+    while(!feof(ptr1))
+    {
+    	if(fread(&p[m],LEN,1,ptr1)==1)
+    	m++;
+	}
+	fclose(ptr1);
+	printf("请输入被删除人的姓名和邮箱\n"); 
+	printf("姓名:");scanf("%s",&name);printf("\n");
+	printf("邮箱:");scanf("%s",&mail);printf("\n");
+	for(i=0;i<m;i++)
+	{
+		if(strcmp(p[i].name,name)==0&&strcmp(p[i].e_mail,mail)==0)
+		{
+			for(;i<m-1;i++)
+			p[i]=p[i+1];
+			j=1;
+		}
+	}
+	if(j==1)
+	{
+	ptr1=fopen("sto3.txt","w");
+	for(i=0;i<m-1;i++)
+	{
+	fwrite(&p[i],LEN,1,ptr1);
+    }
+    fclose(ptr1);
+    }
+	if(j==1)
+	printf("删除成功\n");
+	else
+	printf("没有此联系人\n"); 
+}
+void xiugai()
+{
+	system("cls");
+	FILE *ptr1;
+	struct txl *p;
+	p=phone;
+	char name[10],mail[30];
+	int j,i,x=0,m=0;
+	p=phone;
+	ptr1=fopen("sto3.txt","rb");
+		if(ptr1==NULL)
+		{
+			printf("通讯录为空\n");
+			return; 
+		}
+//	rewind(ptr1);
+    while(!feof(ptr1))
+    {
+    	if(fread(&p[m],LEN,1,ptr1)==1)
+    	m++;
+	}
+	fclose(ptr1);
+	printf("请输入修改人的姓名和邮箱\n"); 
+	printf("姓名:");scanf("%s",&name);printf("\n");
+	printf("邮箱:");scanf("%s",&mail);printf("\n");
+	for(i=0;i<m;i++)
+	{
+		if(strcmp(p[i].name,name)==0&&strcmp(p[i].e_mail,mail)==0)
+		{
+			x=1;
+			printf("      选择修改的内容\n");
+			do
+			{
+			 printf("___________________\n");
+			 printf("1.修改姓名 ");printf("2.修改籍贯\n");
+			 printf("3.修改电话号1 ");printf("4.修改电话号2\n");
+			 printf("5.修改邮箱 ");printf("0.放弃修改/退出修改\n");
+			 printf("___________________\n");
+			 printf("请输入序号:\n");
+			 scanf("%d",&j);
+			 switch(j)
+			 {
+			 	case 1:printf("请输入修改姓名: ");scanf("%s",&p[i].name);printf("修改成功\n");break;
+			 	case 2:printf("请输入修改籍贯: ");scanf("%s",&p[i].hometown);printf("修改成功\n");break;
+			 	case 3:printf("请输入修改电话号1: ");scanf("%s",&p[i].number1);printf("修改成功\n");break;
+			 	case 4:printf("请输入修改电话号2: ");scanf("%s",&p[i].number2);printf("修改成功\n");break;
+			 	case 5:printf("请输入修改邮箱: ");scanf("%s",&p[i].e_mail);printf("修改成功\n");break;
+			 }
+			}while(j!=0);
+		}
+	}
+	if(x==0)
+	printf("没有此人\n");
+    ptr1=fopen("sto3.txt","w");
+	for(i=0;i<m;i++)
+	{
+	fwrite(&p[i],LEN,1,ptr1);
+    }
+    fclose(ptr1);
+}
+void tianjia()
+{
+	system("cls");
+	static int i=0;  //使用static 来计算已经加入的人数。 
+	int j,t;
+	struct txl *p;       
+    p=phone;
+	printf("可以开始添加\n");
+	printf("电话号不能超过11个呦,亲!\n");
+	printf("电子邮箱不能超过10个字符呦~~\n");
+	ptr1=fopen("sto3.txt","ab+");
+	if(ptr1==NULL)
+	{
+		ptr1=fopen("sto3.txt","wb+");
+		if(ptr1==NULL)
+		{
+			printf("Cannot open file");
+			exit(0);
+		}
+	}
+	fseek(ptr1,0,SEEK_END);//使文件的指针指向文件末尾，可以使其添加新的数据 
+	do
+	{
+	printf("请输入姓名:");
+	scanf("%s",&p[i].name); printf("\n");
+	printf("请输入籍贯:");
+	scanf("%s",&p[i].hometown); printf("\n");
+	printf("请输入电话号码1:");
+	scanf("%s",&p[i].number1);printf("\n");
+	printf("请输入电话号码2:");
+	scanf("%s",&p[i].number2); printf("\n");
+	printf("请输入电子邮箱:");
+    scanf("%s",&p[i].e_mail); printf("\n");
+    fwrite(&p[i],LEN,1,ptr1);
+	printf("完成一个添加,是否继续添加\n ");
+	printf("1为继续 0为退出添加\n"); 
+	fflush(stdin);                //清空缓存，让数据进入到文件中，因为如果数据大小没超过512b不会进入文件，这样使得数据强制的进入文件 
+	scanf("%d",&j);
+	i++;count++;
+	}while(j!=0&&count!=100);
+	fclose(ptr1);
+}