小编And*_*zan的帖子

我有一个组件,它具有与组件本身相同类型的子组件.我也可以渲染孩子,但孩子似乎无法进入他们的状态.我正在使用React和Redux

export class Material extends React.Component {

  constructor(props) {
    super(props)
    this.renderChild = this.renderChild.bind(this)
    this.getNestedItems = this.getNestedItems.bind(this)
  }

  static propTypes = {
    parentId: PropTypes.number,
    id: PropTypes.number.isRequired,
    name: PropTypes.string.isRequired,
    subtext: PropTypes.string.isRequired,
    childIds: PropTypes.arrayOf(PropTypes.number.isRequired),
    fileType: PropTypes.string.isRequired
  }

  // This is where I am having trouble.
  // Shouldn't the props be accessible from state itself?

  renderChild = (id, childId) => (
      <Material key={childId}
        id={childId}
        parentId={id}
        name={name}
        subtext={subtext}
        fileType={fileType}
        />
    )

  getNestedItems = (id, childIds) => {
    console.log("id: " + id)
    console.log("childIds: " + childIds) …

当我尝试设置

cub.SetArray(cube);

我收到一个错误

Console Application1.exe has triggered a breakpoint 

我做错了什么？当我尝试调试时,cub -> cubesarray我得到大小-842150451.我不明白为什么.这是我的所有代码

class Cube{
public:
    static const int Change_ARRAY = 5;

private:
    string color;
    int size;
    int *walls;
    int n; // current size of array
    int maximumsize; // maximum size of array
    void Increase(int many);
public:
    Cube(int maximumsize = 0);
    ~Cube();
    void SetWalls(int wall);
    void SetColor(string color);
    void SetSize(int size);

    string GetColor(){return color;}
    int GetWalls(int i){return walls[i];}
    int GetSize(){return size;}

    int GetN(){return n;}
};

Cube::Cube(int maximumsize):n(0), maximumsize(maximumsize), size(size), …