View Compilation Error

722368_0_0_30164.cpp
722368_0_0_30164.cpp(8) : error C2582: “operator =”函数在“std::basic_istream<_Elem,_Traits>”中不可用
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
722368_0_0_30164.cpp(8) : fatal error C1903: 无法从以前的错误中恢复；正在停止编译