C++ 替换字符串
// 替换字符串的某一字符 std::string& replace_all(std::string& str, const std::string& old_value, const std::string& new_value) { while (true) { std::string::size_type pos(0); if ((pos = str.find(old_value)) != std::string::npos) str.replace(pos, old_value.length(), new_value); else break; } return str; }