C++ 助力小核桃：将阳玉智能码字符串全转小写字母

```cpp #include <iostream> #include <string> #include <cctype> int main() { std::string input; std::cin >> input; for (char &c : input) { c = std::tolower(c); } std::cout << input << std::endl; return 0; } ``` ######[AI问答 | 74点数解答 | 2026-01-11 13:54:30]