(7) : error C2144: 语法错误 : “unsigned int”的前面应有“;”
(12) : error C2146: 语法错误 : 缺少“;”(在标识符“n2”的前面)
(12) : error C2563: 在形参表中不匹配
(12) : error C2568: “<<”: 无法解析函数重载
        VC8\include\ostream(971): 可能是“std::basic_ostream<_Elem,_Traits> &std::endl(std::basic_ostream<_Elem,_Traits> &)”
        with
        [
            _Elem=wchar_t,
            _Traits=std::char_traits<wchar_t>
        ]
        VC8\include\ostream(963): 或“std::basic_ostream<_Elem,_Traits> &std::endl(std::basic_ostream<_Elem,_Traits> &)”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        VC8\include\ostream(937): 或“std::basic_ostream<_Elem,_Traits> &std::endl(std::basic_ostream<_Elem,_Traits> &)”