Who can know the question of this program
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I define a class CArray2D,inside it I imeplement a "proxy" class CArray1D, so that if I create a object of CArray2D like CArray2D array(2,3), I can output the its element like cout<<array[0][0]. But when I run it, I met with serials of strange questions like error address. Can anyone tell me why? Many thanks The code is as follows class CArray2D { public: void Print() { CArray1D *pHead = pArray1D; for(int i=0; i<size2D; i++) { cout<<"[ "<<i<<" }"; pHead->Print1D(); pHead = pHead+i*sizeof(CArray1D); cout<<endl; } } CArray2D(int n2DWidth, int n1DWidth):size2D(n2DWidth) { pArray1D = new CArray1D[size2D]; }; ~CArray2D() { delete[] pArray1D; }; class CArray1D { public: CArray1D(int n1DWidth=3):size1D(n1DWidth) { pArray = new int[size1D]; for(int i=0; i<size1D; i++) { *(pArray+i*sizeof(int)) = 0; } }; ~CArray1D() { delete[] pArray; }; const int& operator[](int nIndex) const { return *(pArray+nIndex*sizeof(int)); } int& operator[](int nIndex) { return *(pArray+nIndex*sizeof(int)); } void Print1D() { for(int i=0; i<size1D; i++) { cout<<"["<<i<<"]="<<*(pArray+i*sizeof(int))<<" "; } } private: int size1D; int *pArray; }; const CArray1D& operator[](int nIndex) const { return *(pArray1D+nIndex*sizeof(CArray1D)); }; CArray1D& operator[](int nIndex) { return *(pArray1D+nIndex*sizeof(CArray1D)); }; public: int size2D; CArray1D *pArray1D; }; int main() { CArray2D array(2,3); array.Print(); array[0][0] = 3; array.Print(); cout<<array[0][0]<<endl; return 0; } } Tomorrow is another day