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View Compilation Error

0_0_2034353_25768.cpp
0_0_2034353_25768.cpp(8) : error C2137: 空字符常数
0_0_2034353_25768.cpp(8) : error C2593: “operator >>”不明确
        VC\include\istream(413): 可能是“std::basic_istream<_Elem,_Traits>::_Myt &std::basic_istream<_Elem,_Traits>::operator >>(std::basic_istream<_Elem,_Traits>::_Mysb *)”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        VC\include\istream(141): 或       “std::basic_istream<_Elem,_Traits>::_Myt &std::basic_istream<_Elem,_Traits>::operator >>(std::ios_base &(__cdecl *)(std::ios_base &))”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        VC\include\istream(135): 或       “std::basic_istream<_Elem,_Traits>::_Myt &std::basic_istream<_Elem,_Traits>::operator >>(std::basic_istream<_Elem,_Traits>::_Myios &(__cdecl *)(std::basic_istream<_Elem,_Traits>::_Myios &))”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        VC\include\istream(130): 或       “std::basic_istream<_Elem,_Traits>::_Myt &std::basic_istream<_Elem,_Traits>::operator >>(std::basic_istream<_Elem,_Traits>::_Myt &(__cdecl *)(std::basic_istream<_Elem,_Traits>::_Myt &))”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        VC\include\istream(983): 或       “std::basic_istream<_Elem,_Traits> &std::operator >><char,std::char_traits<char>>(std::basic_istream<_Elem,_Traits> &,short *)”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        VC\include\istream(967): 或       “std::basic_istream<_Elem,_Traits> &std::operator >><char,std::char_traits<char>>(std::basic_istream<_Elem,_Traits> &,unsigned char *)”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        VC\include\istream(951): 或       “std::basic_istream<_Elem,_Traits> &std::operator >><char,std::char_traits<char>>(std::basic_istream<_Elem,_Traits> &,signed char *)”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        试图匹配参数列表“(std::basic_istream<_Elem,_Traits>::_Myt, int)”时
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]


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