#include#include int main() { std::wstring data; std::wifstream file("example.txt"); if (file.is_open()) { std::wstring line; while (std::getline(file, line)) { data += line; } file.close(); } return 0; }
#includeIn this example, the two wstring variables str1 and str2 are concatenated using the + operator, and the resulting wstring variable result contains the concatenated string "Hello world!". Both examples use the std namespace, which means that the wstring data type is part of the C++ standard library.int main() { std::wstring str1 = L"Hello"; std::wstring str2 = L" world!"; std::wstring result = str1 + str2; return 0; }