从vector<string>到wchar_t**的转换

#include <iostream>
#include <vector>
#include <string>
#include <cstring>

wchar_t** convertVectorToWcharTVector(const std::vector<std::string>& strings) {
    // 创建wchar_t**类型的指针数组
    wchar_t** wcharStrings = new wchar_t*[strings.size()];

    for (size_t i = 0; i < strings.size(); ++i) {
        const std::string& str = strings[i];

        // 获取字符串长度
        size_t length = str.length();

        // 动态分配wchar_t数组的内存空间
        wchar_t* wcharStr = new wchar_t[length + 1];

        // 将字符串转换为wchar_t数组
        std::mbstowcs(wcharStr, str.c_str(), length + 1);

        // 将转换后的wchar_t数组赋值给指针数组的对应位置
        wcharStrings[i] = wcharStr;
    }

    return wcharStrings;
}

int main() {
    std::vector<std::string> strings = {"Hello", "World"};

    // 将vector<string>转换为wchar_t**
    wchar_t** wcharStrings = convertVectorToWcharTVector(strings);

    // 打印转换后的字符串
    for (size_t i = 0; i < strings.size(); ++i) {
        std::wcout << wcharStrings[i] << std::endl;
    }

    // 释放内存
    for (size_t i = 0; i < strings.size(); ++i) {
        delete[] wcharStrings[i];
    }
    delete[] wcharStrings;

    return 0;
}