关于mwArray和一般数组的区别

可以用下面的代码详细理解mwArray和一般数组之间的区别

        mwArray a(3, 2,  mxDOUBLE_CLASS);  
        double *aData;  
        aData = new double[6];  
        int iii;  
        for( iii=0; iii<6; ++iii)  
        {  
                aData[iii] = iii+1;  
        }  
        // print output  
        std::cout << "a = " << std::endl;  
        std::cout << aData[0] << ",\t" << aData[1] << std::endl;  
        std::cout << aData[2] << ",\t" << aData[3] << std::endl;
        std::cout << aData[4] << ",\t" << aData[5] << std::endl;  
 
        a.SetData(aData, 6);  
        std::cout << "a(1,1)="<<a(1,1)<<std::endl;
        std::cout << "a(1,2)="<<a(1,2)<<std::endl;
        std::cout << "a(2,1)="<<a(2,1)<<std::endl;
        std::cout << "a(2,2)="<<a(2,2)<<std::endl;
        std::cout << "a(3,1)="<<a(3,1)<<std::endl;
        std::cout << "a(3,2)="<<a(3,2)<<std::endl;

运行结果如图：【一位数组到多维数组的组织方式是列优先的】

a =
1,      2
3,      4
5,      6
a(1,1)=1
a(1,2)=4
a(2,1)=2
a(2,2)=5
a(3,1)=3
a(3,2)=6