if (eventResize) {
imgDeck && gr.DrawImage(imgDeck, data_XY_image[1][4], data_XY_image[1][5], data_XY_image[1][6], data_XY_image[1][7], 0, 0, data_XY_image[1][6], data_XY_image[1][7]);//那个
}
请教以上代码：data_XY_image[1][4], data_XY_image[1][5], data_XY_image[1][6], data_XY_image[1][7], 0, 0, data_XY_image[1][6], data_XY_image[1][7]这些中括号里的数字是什么意思？
先谢了！！！

数组对象，目标图片放置坐标和大小及源图片截取起始坐标和大小，如果看不懂建议自学下javascript。
DrawImage(img, dstX, dstY, dstW, dstH, srcX, srcY, srcW, srcH, angleopt, alphaopt)
dstX = data_XY_image[1][4]
dstY = data_XY_image[1][5]
dstW = data_XY_image[1][6]
dstH = data_XY_image[1][7]
srcX = 0
srcY = 0
srcW = data_XY_image[1][6]
srcH = data_XY_image[1][7]