津上外圓磨床編程：修整成型砂輪編程？

class TreeNode{

public:

T data;

int index;

int active;

TreeNode & operator=(TreeNode & treenode)

{

this->data=treenode.data;

this->index=treenode.index;

this->active=treenode.active;

return *this;

}

};