我从cppreference.com窃取了以下代码片段并将其用于wchar_t的用法:#include#include#includetemplatestructtest_seq{};templatestructtest_seq{std::stringoperator()(){return"1\n2\n3\n4\n5\n6\n7\n";}};templatestructtest_seq{std::wstringoperator()(){returnL"1\n2\n3\n4\n5\n6\n7\n";}};intmain(int,char**){usingchar_t=wchar_t;st