英汉字典

#include <stdio.h>
#include <conio.h>
#include <string.h>
#include <stdlib.h>
struct node{
char word[30];
char ch[40];
struct node *next;
};
struct node *head;
struct node *q;
void gongneng();
void write();
//查询单词
void chaxun(){
system("cls");
struct node *p,*t;
int flag=0;
int n;
p=(struct node *)malloc(sizeof(struct node));
t=(struct node *)malloc(sizeof(struct node));
t=head;
printf("\n请输入要查询的单词：");scanf("%s",&p->word);
do{
if(strcmp(t->word,p->word)==0) {flag=1;break;}
else t=t->next;
}while(t);
if(flag==1) {printf("%s %s\n",t->word,t->ch);}
else {printf("\n该单词不存在！！！\n");}
printf("\n\n1 继续查询！\n2 返回！\n其他任意键退出！\n\n\n请选择：");
scanf("%d",&n);
if(n==1) chaxun();
else if(n==2) {system("CLS");gongneng();}
else {printf("\n是否保存到文件\n\n\n1 是！\n0 否！\n请选择：");
int m;
scanf("%d",&m);
if(m==1) write();
exit(-1);}
}
//修改单词
void change(){
system("cls");
struct node *p,*t;
int flag=0,n,len;
p=(struct node *)malloc(sizeof(struct node));
t=(struct node *)malloc(sizeof(struct node));
t=head;
printf("\n请输入要修改的单词：");scanf("%s",&p->word);
do{
if(strcmp(t->word,p->word)==0) {flag=1;break;}
else t=t->next;
}while(t);
if(flag==1) {
printf("\n请输入该单词的信息：");scanf("%s",&t->ch);len=strlen(t->ch);t->ch[len]='\n';
}
else {printf("\n该单词不存在！！！!\n");}
printf("\n\n\n1 继续修改！\n2 返回！\n其他任意键退出！\n\n请选择：");
scanf("%d",&n);
if(n==1) change();
else if(n==2) {system("CLS");gongneng();}
else {printf("\n是否保存到文件\n\n\n1 是！\n0 否！\n请选择：");
int m;
scanf("%d",&m);
if(m==1) write();
exit(-1);}
}
//添加单词
void add(){
system("cls");
struct node *p,*t,*s;
int n,flag=0,len;
p=(struct node *)malloc( sizeof(struct node));
t=(struct node *)malloc(sizeof(struct node));
s=(struct node *)malloc(sizeof(struct node));
s=head,t=head->next;
printf("\n请输入添加的单词：");scanf("%s",&p->word);len=strlen(p->word);p->word[len]=' ';
printf("\n请输入该单词的信息：");scanf("%s",&p->ch);len=strlen(p->ch);p->ch[len]='\n';
while(s){
if((strcmp(p->word,s->word)>0)&&(strcmp(p->word,t->word)<0)){
p->next=s->next;s->next=p;flag=1;break;}
else if(strcmp(p->word,s->word)==0) {printf("\n该单词已存在！！！\n");break;}
else {s=s->next,t=t->next;}}
if(flag==1) printf("\n\n添加成功！\n");
printf("\n1 继续添加！\n2 返回！\n其他键退出！\n\n\n请选择：");
scanf("%d",&n);
if(n==1) add();
else if(n==2) {system("cls");gongneng();}
else {printf("\n是否保存到文件\n\n\n1 是！\n0 否！\n请选择：");
int m;
scanf("%d",&m);
if(m==1) write();
exit(-1);}
}
//删除单词
void shanchu(){
system("cls");
struct node *p,*t,*s;
int flag=0,n;
p=(struct node *)malloc(sizeof(struct node));
t=(struct node *)malloc(sizeof(struct node));
s=(struct node *)malloc(sizeof(struct node));
s=head,t=head->next;
printf("\n请输入要删除的单词：");scanf("%s",&p->word);
if(strcmp(head->word,p->word)==0) {head=head->next; printf("\n删除单词成功！\n");}//第一个单词
else {
while(t){
if(strcmp(t->word,p->word)==0) {flag=1;break;}
t=t->next;
s=s->next;
}
if(flag==1){if(strcmp(q->word,p->word)==0) q=NULL;//最后一个单词
else {s->next=t->next;free(t);}
printf("\n删除单词成功！\n");}
else {printf("\n该单词不存在！！！\n");}}
printf("\n\n1 继续删除！\n2 返回！\n其他任意键退出！\n\n请选择：");
scanf("%d",&n);
if(n==1) shanchu();
else if(n==2) {system("CLS");gongneng();}
else {printf("\n是否保存到文件\n\n\n1 是！\n0 否！\n请选择：");
int m;
scanf("%d",&m);
if(m==1) write();
exit(-1);}
}
//读入文件内容到链表
void read(){
FILE *fp;
struct node *p;
p=q=(struct node *)malloc( sizeof(struct node));
fp=fopen("F:\\English.txt","r");
if(fp==NULL){
printf("File open error!\n");
exit(0);
}
head=NULL;
head=p;
while(!feof(fp)){
fscanf(fp,"%s",p->word);
fgets(p->ch,50,fp);
q->next=p;
q=p;
p=(struct node *)malloc( sizeof(struct node));}
q->next=NULL;
fclose(fp);
}
//链表内容写入文件
void write(){
FILE *fp;
struct node *p;
p=(struct node *)malloc( sizeof(struct node));
fp=fopen("F:\\english.txt","r+");
if(fp==NULL){
printf("File open error!!!\n");
exit(0);
}
p=head;
do{
fprintf(fp,"%s",p->word);
fputs(p->ch,fp);
p=p->next;
}while(p);
fclose(fp);
}
void gongneng(){
int choice;
system("CLS");
printf("\n\n\t\t\t欢迎使用本电子词典\n");
printf("\t\t=======================================\n");
printf("\n\t\t\t1 查找单词！\n\n\t\t\t2 修改单词！\n\n\t\t\t3 添加单词！\n\n\t\t\t4 删除单词！\n\n\t\t\t0 退出！\n\n\t\t\t请选择：");
scanf("%d",&choice);
switch(choice){
case 1:chaxun();break;
case 2:change();break;
case 3:add(); break;
case 4:shanchu();break;
case 0:{printf("\n是否保存到文件\n\n\n1 是！\n0 否！\n请选择：");
int m;
scanf("%d",&m);
if(m==1) write();
exit(-1);}
default:{printf("\n\n\t\t\t 输入有误！\n\n\t\t\t按任意键返回！");if(getch()!=127) gongneng();};break;}
}
int main(){
system("color 1E"); //设计文本颜色
read();
gongneng();
return 0;
}。