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0_0_3067293_22593.cpp
0_0_3067293_22593.cpp(35) : error C2440: “=” : 无法从“Splay_Tree<T>::NODE *”转换为“Splay_Tree<T>::np”
        with
        [
            T=Sa1
        ]
        and
        [
            T=Sa1
        ]
        与指向的类型无关；转换要求 reinterpret_cast、C 样式转换或函数样式转换
        0_0_3067293_22593.cpp(30) : 编译类模板成员函数“void Splay_Tree<T>::init(T)”时
        with
        [
            T=Sa1
        ]
        0_0_3067293_22593.cpp(141) : 参见对正在编译的类模板实例化“Splay_Tree<T>”的引用
        with
        [
            T=Sa1
        ]