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

 1         mwArray a(3, 2,  mxDOUBLE_CLASS);  
 2         double *aData;  
 3         aData = new double[6];  
 4         int iii;  
 5         for( iii=0; iii<6; ++iii)  
 6         {  
 7                 aData[iii] = iii+1;  
 8         }  
 9         // print output  
10         std::cout << "a = " << std::endl;  
11         std::cout << aData[0] << ",	" << aData[1] << std::endl;  
12         std::cout << aData[2] << ",	" << aData[3] << std::endl;
13         std::cout << aData[4] << ",	" << aData[5] << std::endl;  
14  
15         a.SetData(aData, 6);  
16         std::cout << "a(1,1)="<<a(1,1)<<std::endl;
17         std::cout << "a(1,2)="<<a(1,2)<<std::endl;
18         std::cout << "a(2,1)="<<a(2,1)<<std::endl;
19         std::cout << "a(2,2)="<<a(2,2)<<std::endl;
20         std::cout << "a(3,1)="<<a(3,1)<<std::endl;
21         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】

 1 a =
 2 1,      2
 3 3,      4
 4 5,      6
 5 a(1,1)=1
 6 a(1,2)=4
 7 a(2,1)=2
 8 a(2,2)=5
 9 a(3,1)=3
10 a(3,2)=6