可以用下面的代码详细理解mwArray和一般数组之间的区别
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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】
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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 |
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