View Compilation Error

0_0_1748621_19024.cpp
0_0_1748621_19024.cpp(39) : error C2668: “max” : 对重载函数的调用不明确
        0_0_1748621_19024.cpp(9): 可能是“const T &max<std::basic_string<_Elem,_Traits,_Ax>::size_type>(const T &,const T &)”
        with
        [
            T=std::basic_string<char,std::char_traits<char>,std::allocator<char>>::size_type,
            _Elem=char,
            _Traits=std::char_traits<char>,
            _Ax=std::allocator<char>
        ]
        VC\include\xutility(1242): 或       “const _Ty &std::max<std::basic_string<_Elem,_Traits,_Ax>::size_type>(const _Ty &,const _Ty &)”
        with
        [
            _Ty=std::basic_string<char,std::char_traits<char>,std::allocator<char>>::size_type,
            _Elem=char,
            _Traits=std::char_traits<char>,
            _Ax=std::allocator<char>
        ]
        试图匹配参数列表“(std::basic_string<_Elem,_Traits,_Ax>::size_type, std::basic_string<_Elem,_Traits,_Ax>::size_type)”时
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>,
            _Ax=std::allocator<char>
        ]
        and
        [
            _Elem=char,
            _Traits=std::char_traits<char>,
            _Ax=std::allocator<char>
        ]