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0_0_6284634_19869.cpp
VC\include\functional(309) : warning C4181: 应用到引用类型的限定符；已将其忽略
        0_0_6284634_19869.cpp(75) : 参见对正在编译的类模板实例化“std::binder2nd<_Fn2>”的引用
        with
        [
            _Fn2=std::pointer_to_binary_function<const node,std::string &,bool>
        ]
VC\include\functional(308) : error C2529: “_Right” : 引用的引用非法
VC\include\functional(320) : error C2535: “std::binder2nd<_Fn2>::result_type std::binder2nd<_Fn2>::operator ()(const std::binder2nd<_Fn2>::argument_type &) const” : 已经定义或声明成员函数
        with
        [
            _Fn2=std::pointer_to_binary_function<const node,std::string &,bool>
        ]
        VC\include\functional(314) : 参见“std::binder2nd<_Fn2>::operator`()'”的声明
        with
        [
            _Fn2=std::pointer_to_binary_function<const node,std::string &,bool>
        ]