本篇文章给大家分享的是有关怎么在C++中利用多线程实现电子词典,小编觉得挺实用的,因此分享给大家学习,希望大家阅读完这篇文章后可以有所收获,话不多说,跟着小编一起来看看吧。
具体内容如下
// Dictionary.cpp : 定义控制台应用程序的入口点。 //vs2013编译 //字典文件:https://pan.baidu.com/s/1YHtwptaq_V8j034U9_J96A #include "stdafx.h" #include <string> #include <vector> #include <iostream> #include <map> #include <fstream> #include <io.h> #include <thread> #include <time.h> #include <Windows.h> using namespace std; class ParseDirectory { public: ParseDirectory(string path){ this->path = path; getFiles(files); isdone = false; t = thread(&ParseDirectory::txtToDic, this); //t.join(); } bool isDone() { return isdone; } map<string, string> getDic() { return vecDics; } virtual ~ParseDirectory() { } private: vector<string> files; string path; thread t; map<string, string> vecDics; bool isdone; void getFiles(vector<string>& files) { //文件句柄 long hFile = 0; //文件信息 struct _finddata_t fileinfo; string p; if ((hFile = _findfirst(p.assign(path).append("\\*").c_str(), &fileinfo)) != -1) { do { //如果是目录,迭代之 if ((fileinfo.attrib & _A_SUBDIR)) { //if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0) //getFiles(p.assign(path).append("\\").append(fileinfo.name), files); continue; } else { files.push_back(p.assign(path).append("\\").append(fileinfo.name)); } } while (_findnext(hFile, &fileinfo) == 0); _findclose(hFile); } } void txtToDic() { for each (string file in files) { fstream f(file); string word, explain; //map<string, string> dic; if (f.is_open()) { //cout << file << endl; while (1) { getline(f, word); if (!getline(f, explain)) break; vecDics[word] = explain; } } f.close(); //vecDics.push_back(dic); } //cout << vecDics.size() << endl; isdone = true; } }; void setColor(unsigned short ForeColor = 2, unsigned short BackGroundColor = 0) { HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);//获取当前窗口句柄 SetConsoleTextAttribute(handle, ForeColor + BackGroundColor * 0x10);//设置颜色 } int _tmain(int argc, _TCHAR* argv[]) { vector<ParseDirectory*> pds; cout << "正在加载资源..."; long start = clock(); vector<map<string, string> > allWords; for (int i = 0; i < 26; i++) { string name = ".\\"; name += 'A' + i; pds.push_back(new ParseDirectory(name)); } int cnt = 0; for (int i = 0; i < pds.size(); i++) { if (pds[i]->isDone()) { cnt++; allWords.push_back(pds[i]->getDic()); Sleep(300); } if (cnt == pds.size()) break; } system("cls"); cout << "加载完成!" << "耗时:" << (clock()-start)/1000.0 << "s" << endl; cout << allWords.size(); string inquir; while (1) { bool flag = false; setColor(); cout << "\n输入要查询的单词:"; setColor(7, 0); cin >> inquir; for (int i = 0; i < allWords.size(); i++) { auto t = allWords[i][inquir]; if (t.size()) { cout << t << endl; flag=true; } } if (!flag) { setColor(4, 0); cout << "抱歉,未找到单词" << endl; } } system("pause"); return 0; }
效果图:
以上就是怎么在C++中利用多线程实现电子词典,小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注亿速云行业资讯频道。
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