功能分析

生词本管理：

创建生词本文件：在构造函数中创建了“生词本.txt”“背词历史.log”“历史记录.txt”三个文件。添加单词：用户可以输入单词、词性和解释，将其添加到生词本中。查询所有单词：展示生词本中所有的单词、词性和翻译。精确查词：用户可以选择按照单词、词性或中文解释进行查词，并显示查询结果。删除单词：根据用户输入删除生词本中的特定单词。背词功能：

背生词：从生词本中读取单词进行背诵，背诵完成后将生词从生词本中删除，并将相关信息添加到背词历史中。历史记录查询：

根据时间查历史记录：用户输入年月日，查询该日期的背词历史记录，并将其保存到历史记录文件中。查询历史背词：展示历史记录文件中的内容。其他功能：

更新日志：输出新增功能的说明。总的服务界面：提供菜单界面，用户根据序号选择相应的服务。

详细代码

<code>#include <iostream>

#include <fstream>

#include <string>

#include <sstream>

#include <iomanip> //输出控制头文件1

#include <time.h>

#include <windows.h>

using namespace std;

class Recite {

fstream file;

fstream file1;

public:

Recite(); //创建生词本文件

void insert_word(); //添加单词

void query_all(); //查询所有单词

void query_by_time();//根据时间查历史记录

void query_history();//查询历史背词

void query_exact(); //精确查词

void delete_word(); //删除单词

int get_num(); //返回生词本中单词的数量

void recite_word(); //背生词

void update_log(); //更新日志

void run(); //总的服务界面

};

Recite::Recite() {

file.open("生词本.txt");

file.close();

file.open("背词历史.log");

file.close();

file.open("历史记录.txt");

file.close();

}

void Recite::insert_word() {

clock_t startTime, endTime;

file.open("生词本.txt", ios::out | ios::app); //在文件末尾处写入

if (file.is_open() == 1) {

//打开成功的话

startTime = clock();

char word[20], cha[5], trans[20]; //单词 词性 解释

cout << "请输入要写入错题本的单词：";

cin >> word;

cout << "请输入单词的词性：";

cin >> cha;

cout << "请输入单词的解释：";

cin >> trans;

file << word << " " << cha << " " << trans << endl; //1就代表没有被删除的单词

file.close();

endTime = clock();

cout << "写入成功，总共用时" << (double) (endTime - startTime) / CLOCKS_PER_SEC << " s" << endl;

} else {

cout << "打开文件失败" << endl;

system("pause");

}

}

void Recite::query_all() {

clock_t startTime, endTime;

startTime = clock();

char buffer[100];

int number = 0; //记录记录的条数

cout << " --------+----+---------" << endl;

cout << "|" << setw(8) << "单词";

cout << "|" << setw(4) << "词性";

cout << "|" << setw(8) << "翻译";

cout << "|" << endl;

cout << " --------+----+---------" << endl;

file.open("生词本.txt", ios::in | ios::app);

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3, s4;

is >> s1 >> s2 >> s3 >> s4;

if (s1 != "" && s2 != "" && s3 != "") {

number++;

cout << "|" << setw(8) << s1;

cout << "|" << setw(4) << s2;

cout << "|" << setw(8) << s3;

cout << "|" << endl;

cout << " --------+----+---------" << endl;

}

}

endTime = clock();

cout << "总共有" << number << "条记录，总共用时" << (double) (endTime - startTime) / CLOCKS_PER_SEC << " s" << endl;

file.close();

}

void Recite::query_by_time() {

file.open("背词历史.log", ios::in | ios::out | ios::app);

if (file.is_open()) {

string time;

cout << "请输入要查询的历史记录的年月日，格式为年-月-日：";

cin >> time;

string word[100], cha[100], trans[100];

int i = 0;

char buffer[100];

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string t1, t2;

is >> t1 >> t2;

if (t1 == time) {

while (!file.eof()) {

file.getline(buffer, 100);

istringstream input(buffer);

string s1, s2, s3;

input >> s1 >> s2 >> s3;

if (s1 != "" && s2 != "" && s3 != "") {

word[i] = s1;

cha[i] = s2;

trans[i] = s3;

i++;

} else {

if (s1 == time)

continue;

else

break;

}

}

}

}

file.close();

file.open("历史记录.txt", ios::in | ios::out | ios::trunc);

for (int j = 0; j < i; j++)

file << word[j] << " " << cha[j] << " " << trans[j] << endl;

file.close();

query_history();

} else {

cout << "文件打开失败" << endl;

return;

}

}

void Recite::query_history() {

clock_t startTime, endTime;

startTime = clock();

char buffer[100];

int number = 0; //记录记录的条数

cout << " --------+----+---------" << endl;

cout << "|" << setw(8) << "单词";

cout << "|" << setw(4) << "词性";

cout << "|" << setw(8) << "翻译";

cout << "|" << endl;

cout << " --------+----+---------" << endl;

file.open("历史记录.txt", ios::in | ios::app);

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3, s4;

is >> s1 >> s2 >> s3 >> s4;

if (s1 != "" && s2 != "" && s3 != "") {

number++;

cout << "|" << setw(8) << s1;

cout << "|" << setw(4) << s2;

cout << "|" << setw(8) << s3;

cout << "|" << endl;

cout << " --------+----+---------" << endl;

}

}

endTime = clock();

cout << "总共有" << number << "条记录，总共用时" << (double) (endTime - startTime) / CLOCKS_PER_SEC << " s" << endl;

file.close();

}

void Recite::query_exact() {

clock_t startTime, endTime;

char buffer[100];

int i, number = 0;

cout << "1.按照单词查词" << endl;

cout << "2.按照词性查词" << endl;

cout << "3.按照中文解释查词" << endl;

cout << "请输入需要确定查词方式：";

cin >> i;

startTime = clock();

string word;

cout << "请输入要查的单词：";

cin >> word;

cout << " --------+----+---------" << endl;

cout << "|" << setw(8) << "单词";

cout << "|" << setw(4) << "词性";

cout << "|" << setw(8) << "翻译";

cout << "|" << endl;

cout << " --------+----+---------" << endl;

file.open("生词本.txt", ios::in);

switch (i) {

case 1:

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3;

is >> s1 >> s2 >> s3;

if (s1 == word) {

number++;

cout << "|" << setw(8) << s1;

cout << "|" << setw(4) << s2;

cout << "|" << setw(8) << s3;

cout << "|" << endl;

cout << " --------+----+---------" << endl;

}

}

endTime = clock();

cout << "查询成功，一共有" << number << "条记录，用时：" << (double) (endTime - startTime) / CLOCKS_PER_SEC

<< " s" << endl;

file.close();

break;

case 2:

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3;

is >> s1 >> s2 >> s3;

if (s2 == word) {

number++;

cout << "|" << setw(8) << s1;

cout << "|" << setw(4) << s2;

cout << "|" << setw(8) << s3;

cout << "|" << endl;

cout << " --------+----+---------" << endl;

}

}

endTime = clock();

cout << "查询成功，一共有" << number << "条记录，用时：" << (double) (endTime - startTime) / CLOCKS_PER_SEC

<< " s" << endl;

file.close();

break;

case 3:

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3;

is >> s1 >> s2 >> s3;

if (s3 == word) {

number++;

cout << "|" << setw(8) << s1;

cout << "|" << setw(4) << s2;

cout << "|" << setw(8) << s3;

cout << "|" << endl;

cout << " --------+----+---------" << endl;

}

}

endTime = clock();

cout << "查询成功，一共有" << number << "条记录，用时：" << (double) (endTime - startTime) / CLOCKS_PER_SEC

<< " s" << endl;

file.close();

break;

default:

//默认用单词查询

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3;

is >> s1 >> s2 >> s3;

if (s1 == word) {

number++;

cout << "|" << setw(8) << s1;

cout << "|" << setw(4) << s2;

cout << "|" << setw(8) << s3;

cout << "|" << endl;

cout << " --------+----+---------" << endl;

}

}

endTime = clock();

cout << "查询成功，一共有" << number << "条记录，用时：" << (double) (endTime - startTime) / CLOCKS_PER_SEC

<< " s" << endl;

file.close();

break;

}

}

int Recite::get_num() {

file1.open("生词本.txt", ios::in); //以只读方式打开生词本

char buffer[100];

int number = 0;

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3;

is >> s1 >> s2 >> s3;

if (s1 != " " && s2 != " " && s3 != " ")

number++;

}

file1.close();

return number;

}

void Recite::delete_word() {

query_all(); //显示所有的记录

string str;

clock_t startTime, endTime;

cout << "请输入想要删除的单词：";

cin >> str;

startTime = clock();

file.open("生词本.txt", ios::in);

char buffer[100];

string str1[100], str2[100], str3[100];

int i = 0;

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3;

is >> s1 >> s2 >> s3;

if (s1 != str && s1 != "" && s2 != "" && s3 != "") {

str1[i] = s1;

str2[i] = s2;

str3[i] = s3;

i++;

}

}

file.close();

file.open("生词本.txt", ios::out | ios::trunc); //以截断方式打开文件，清空所有内容

for (int j = 0; j < i; j++) {

file << str1[j] << " " << str2[j] << " " << str3[j] << " " << endl;

}

file.close();

endTime = clock();

cout << "删除成功，用时：" << (double) (endTime - startTime) / CLOCKS_PER_SEC << " s" << endl;

}

void Recite::recite_word() {

file.open("生词本.txt", ios::in | ios::out);

if (file.is_open() == 1) {

clock_t startTime, endTime;

//遍历后将单词拷贝至内存

string word[100], cha[100], trans[100], str;

char buffer[100];

int i = 0;

while (!file.eof()) {

file.getline(buffer, 100);

istringstream is(buffer);

string s1, s2, s3;

is >> s1 >> s2 >> s3;

if (s1 != "" && s2 != "" && s3 != "") {

word[i] = s1;

cha[i] = s2;

trans[i] = s3;

i++;

}

}

int number = i;

cout << "本次需要复习的单词数量是：" << number << endl;

system("pause");

system("cls");

int num_of_recite[100]; //记录需要背诵单词的次数，一开始都是1

for (int k = 0; k < 100; k++)

num_of_recite[k] = 1;

int sucessful = 0; //判断单词是否背完了，背完了就是1，没有背完就是0

if (number == 0)

sucessful = 1;

int num = 0;

startTime = clock();

while (sucessful == 0) {

for (int j = 0; j < i; j++) {

if (num_of_recite[j] != 0) {

cout << "中文意思：" << trans[j] << " " << cha[j] << endl;

cout << "请输入单词：";

cin >> str;

if (str == word[j]) {

cout << "正确！";

num_of_recite[j]--;

system("pause");

system("cls");

num++;

if (num == number)

sucessful = 1;

} else {

cout << "错误，正确答案是：" << word[j];

num_of_recite[j]++;

system("pause");

system("cls");

}

}

}

}

endTime = clock();

cout << "恭喜你背完啦~~，用时：" << (double) (endTime - startTime) / CLOCKS_PER_SEC << " s" << endl;

//背完单词后清空单词表

file.close();

file.open("生词本.txt", ios::out | ios::trunc);

file.close();

//然后写入日志

file.open("背词历史.log", ios::out | ios::app);

SYSTEMTIME st = {0};

GetLocalTime(&st);

file << st.wYear << "-" << st.wMonth << "-" << st.wDay << " " << st.wHour << ":" << st.wMinute << ":"

<< st.wSecond << endl;

for (int j = 0; j < i; j++) {

file << word[j] << " " << cha[j] << " " << trans[j] << endl;

}

file.close();

} else {

cout << "生词表为空，先加入生词再背诵吧" << endl;

return;

}

}

void Recite::update_log() {

cout << "新增的内容：" << endl;

cout << "1.新增背词功能，在背诵完生词后生词会自动从生词表删除，并且添加到背词历史中" << endl;

cout << "2.新增历史生词查询功能，可以根据当天的年与日查询背诵完的生词" << endl;

}

void Recite::run() {

cout << "------------------------------" << endl;

cout << "|欢迎使用大家一起背单词 |" << endl;

cout << "|1.添加生词 |" << endl;

cout << "|2.显示所有生词 |" << endl;

cout << "|3.精确查词 |" << endl;

cout << "|4.删除生词表中的词 |" << endl;

cout << "|5.背生词 |" << endl;

cout << "|6.查询背诵历史 |" << endl;

cout << "|7.更新日志 |" << endl;

cout << "|8.退出 |" << endl;

cout << "------------------------------" << endl;

cout << "请输入需要服务的序号：";

int i;

cin >> i;

while (i != 8) {

switch (i) {

case 1:

system("cls");

insert_word();

break;

case 2:

system("cls");

query_all();

break;

case 3:

system("cls");

query_exact();

break;

case 4:

system("cls");

delete_word();

break;

case 5:

system("cls");

recite_word();

break;

case 6:

system("cls");

query_by_time();

break;

case 7:

system("cls");

update_log();

break;

case 8:

break;

default:

cout << "对应数字的服务不存在，请重新输入" << endl;

break;

}

system("pause");

system("cls");

cout << "------------------------------" << endl;

cout << "|欢迎使用背词宝version1.1 |" << endl;

cout << "|1.添加生词 |" << endl;

cout << "|2.显示所有生词 |" << endl;

cout << "|3.精确查词 |" << endl;

cout << "|4.删除生词表中的词 |" << endl;

cout << "|5.背生词 |" << endl;

cout << "|6.查询背诵历史 |" << endl;

cout << "|7.更新日志 |" << endl;

cout << "|8.退出 |" << endl;

cout << "------------------------------" << endl;

cout << "请输入需要服务的序号：";

cin >> i;

}

}

int main() {

Recite r;

r.run();

return 0;

}