本文实例为大家分享了C++多线程实现电子词典的具体代码，供大家参考，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;}

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