js中怎样将下面的代码用循环写出来

Question

griddata[3] = Tgrid.getStore().getAt(0).get(Tcm.getColumnHeader(0));
griddata[4] = Tgrid.getStore().getAt(0).get(Tcm.getColumnHeader(1));
griddata[5] = Tgrid.getStore().getAt(0).get(Tcm.getColumnHeader(2));
griddata[6] = Tgrid.getStore().getAt(1).get(Tcm.getColumnHeader(0));
griddata[7] = Tgrid.getStore().getAt(1).get(Tcm.getColumnHeader(1));
griddata[8] = Tgrid.getStore().getAt(1).get(Tcm.getColumnHeader(2));
griddata[9] = Tgrid.getStore().getAt(2).get(Tcm.getColumnHeader(0));
griddata[10] = Tgrid.getStore().getAt(2).get(Tcm.getColumnHeader(1));
griddata[11] = Tgrid.getStore().getAt(2).get(Tcm.getColumnHeader(2));
griddata[12] = Tgrid.getStore().getAt(3).get(Tcm.getColumnHeader(0));
griddata[13] = Tgrid.getStore().getAt(3).get(Tcm.getColumnHeader(1));
griddata[14] = Tgrid.getStore().getAt(3).get(Tcm.getColumnHeader(2));
griddata[15] = Tgrid.getStore().getAt(4).get(Tcm.getColumnHeader(0));
griddata[16] = Tgrid.getStore().getAt(4).get(Tcm.getColumnHeader(1));
griddata[17] = Tgrid.getStore().getAt(4).get(Tcm.getColumnHeader(2));

Answer 1

for(var i = 0 ,y =3; i < 5 ; i ++){
   for(var x = 0 ; x < 3; x++){
      document.writeln('griddata['+(y++)+'] = Tgrid.getStore().getAt('+i+').get(Tcm.getColumnHeader('+x+'))');
   }
}

Answer 2

for(var i = 3; i < 18 ; i ++){
    document.writeln('griddata['+i+'] = Tgrid.getStore().getAt('+[(i/3>>0)-1]+').get(Tcm.getColumnHeader('+[i%3]+'))<br>');
}

Answer 3

for(var i = 3; i < 18 ; i ++){
    document.writeln('griddata['+i+'] = Tgrid.getStore().getAt('+[(i/3>>0)-1]+').get(Tcm.getColumnHeader('+[i%3]+'))<br>');
}

Answer 4

问题已解决，非常感谢大家的回答。
我是这样写的
var x = 3, z = 0;
                        for (var y = 0; y <= 4; y++) {
                            do {
                                if (z == 3) {
                                    z = 0;
                                    griddata[x] = Tgrid.getStore().getAt(y).get(Tcm.getColumnHeader(z));
                                }
                                else {
                                    griddata[x] = Tgrid.getStore().getAt(y).get(Tcm.getColumnHeader(z));
                                }
                                x++;
                                z++;
                            } while (z < 3);
                        }