156 lines
3.6 KiB
C
156 lines
3.6 KiB
C
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int edit_menu()
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{
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printf("-------------编辑-------------\n\n"); //打印编辑菜单并返回用户选择值
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printf("0 - 返回.\n");
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printf("1 - 按姓名查找.\n");
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printf("2 - 按电话查找.\n");
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printf("3 - 按E-mail查找.\n");
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char c[10];
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do
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{
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printf("\nChoice:");
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gets(c);
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} while (strlen(c)!=1||strchr(CHOICES, c[0])==NULL);
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printf("\n");
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return c[0] - '0';
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}
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int edit_menu2() //打印编辑二级菜单并返回用户选择值
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{
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printf("------------编辑------------\n\n");
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printf("0 - 取消.\n");
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printf("1 - 更改姓名.\n");
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printf("2 - 更改性别.\n");
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printf("3 - 更改电话.\n");
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printf("4 - 更改E-mail.\n");
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char c[10];
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do
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{
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printf("\nChoice:");
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gets(c);
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} while (strlen(c)!=1||strchr(CHOICES, c[0])==NULL);
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printf("\n");
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return c[0] - '0';
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}
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struct Contact* edit_by_name(char name[],struct Contact* head) //传入链表头指针和字符串，找到文件中name成员的值与字符串相同的结构体，并返回其地址,若不存在则返回NULL
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{
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while(head!=NULL)
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{
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if(strcmp(head->name,name)==0)return head;
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head=head->next;
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}
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printf("内容不存在.\n\n");
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return NULL;
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}
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struct Contact* edit_by_tel(char tel[],struct Contact* head) //传入链表头指针和字符串，找到文件中tel成员的值与字符串相同的结构体，并返回其地址,若不存在则返回NULL
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{
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while(head!=NULL)
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{
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if(strcmp(head->tel,tel)==0)return head;
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head=head->next;
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}
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printf("内容不存在.\n\n");
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return NULL;
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}
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struct Contact* edit_by_email(char email[],struct Contact* head) //传入链表头指针和字符串，找到文件中email成员的值与字符串相同的结构体，并返回其地址,若不存在则返回NULL
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{
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while(head!=NULL)
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{
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if(strcmp(head->email,email)==0)return head;
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head=head->next;
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}
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printf("内容不存在.\n\n");
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return NULL;
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}
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struct Contact* editc(struct Contact* head) //调用以上函数实现编辑操作
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{
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int c;
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char s[30];
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c=edit_menu();
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if (c == 0)return NULL;
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else if (c == 1)
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{
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printf("请输入姓名：");
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gets(s);
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return edit_by_name(s,head);
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}
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else if (c == 2)
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{
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printf("请输入电话：");
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gets(s);
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return edit_by_tel(s,head);
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}
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else if (c == 3)
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{
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printf("请输入E-mail: ");
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gets(s);
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return edit_by_email(s,head);
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}
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}
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void edit() //将删除功能与菜单界面结合
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{
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struct Contact *head,*p;
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char s[30];
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int c;
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head=copyc();
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p=editc(head);
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if(p==NULL)return;
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showc(p);
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c=edit_menu2();
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if(c==0)return;
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else if(c==1)
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{
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printf("请输入新的姓名：");
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gets(s);
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strcpy(p->name,s);
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writec(head,"wb");
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printf("更改成功！\n\n");
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char t[5];
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printf("Press enter to continue...");
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gets(t);
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}
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else if(c==2)
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{
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do
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{
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printf("请输入新的性别[0(男)/1(女)]：");
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gets(s);
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}while(strcmp(s,"0")&&strcmp(s,"1"));
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if(strcmp(s,"0")==0)strcpy(p->gender,"男");
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else if(strcmp(s,"1")==0)strcpy(p->gender,"女");
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writec(head,"wb");
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printf("更改成功！\n\n");
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char t[5];
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printf("Press enter to continue...");
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gets(t);
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}
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else if(c==3)
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{
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printf("请输入新的电话：");
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gets(s);
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strcpy(p->tel,s);
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writec(head,"wb");
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printf("更改成功！\n\n");
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char t[5];
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printf("Press enter to continue...");
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gets(t);
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}
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else if(c==4)
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{
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printf("请输入新的E-mail：");
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gets(s);
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strcpy(p->email,s);
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writec(head,"wb");
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printf("更改成功！\n\n");
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char t[5];
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printf("Press enter to continue...");
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gets(t);
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}
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}
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