c++ string 与 wstring 互转

string 转 wstring:

#include <iostream>
#include <sstream>
#include <locale>
#include <string>
#include <codecvt>

int main() {
    std::string utf8_str = "你好，世界！";
    std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
    std::wstring wide_str = converter.from_bytes(utf8_str);
    std::wcout.imbue(std::locale("chs"));
    std::wcout << wide_str << std::endl;

    return 0;
}

wstring 转 string:

#include <iostream>
#include <sstream>
#include <locale>
#include <string>
#include <codecvt>

int main() {
    system("chcp 65001");

    std::wstring wide_str = L"你好，世界！";
    std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
    std::string utf8_str = converter.to_bytes(wide_str);
    std::cout.imbue(std::locale("chs"));
    std::cout << utf8_str << std::endl;

    return 0;
}