#include <codecvt> #include <string> #include <locale> #include <iostream> #include <fstream> using namespace std; typedef codecvt_byname<wchar_t,char,std::mbstate_t> F; int _tmain(int argc, _TCHAR* argv[]) { locale::global(locale(locale(),new codecvt_utf8<wchar_t>())); wstring_convert<F,wchar_t> stows(new F("chs")); string str="Hello,涓栫晫!"; wstring wstr; wcout.imbue(locale("chs")); wstr=stows.from_bytes(str); wcout<<wstr<<endl; wofstream("E:\\Wout.txt")<<wstr;// 浠TF-8 緙栫爜淇濆瓨 str=stows.to_bytes(wstr); cout<<str<<endl; ofstream("E:\\out.txt")<<str; return 0; }
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1: #include <ctime>
2: #include <iostream>
3: #include <chrono>
4: #include <thread>
5: #include <iomanip>
6: using namespace std;
7: // the function f() does some time-consuming work
8: void f()
9: {
10: volatile double d=0;
11: for(int n=0; n<1000; ++n)
12: printf("%d ",n);
13: printf("\n");
14: }
15: int main()
16: {
17: std::clock_t c_start = std::clock();
18: auto t_start = std::chrono::high_resolution_clock::now();
19: std::thread t1(f);
20: std::thread t2(f); // f() is called on two threads
21: t1.join();
22: t2.join();
23:
24:
25: std::clock_t c_end = std::clock();
26: auto t_end = std::chrono::high_resolution_clock::now();
27: std::cout << "CPU time used: "
28: << 1000.0 * (c_end-c_start) / CLOCKS_PER_SEC
29: << " ms\n";
30: std::cout << "Wall clock time passed: "
31: << std::chrono::duration_cast<std::chrono::milliseconds>(t_end - t_start).count()
32: << " ms\n";
33:
34:
35:
36: }
37:
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