MATLAB提供了一些绘图选项，用于确定所绘曲线的线型、颜色和数据点标记符号，它们可以组合使用。例如，“b-.”表示蓝色点划线，“y:d”表示黄色虚线并用菱形符标记数据点。当选项省略时，MATLAB规定，线型一律用实线，按默认颜色顺序绘制。(MATLAB provides a number of drawing options to determine the lines, colors, and data point symbols of the drawn curves, which can be used in combination. For example, "b-." means blue dotted lines, "y:d" stands for yellow dotted lines, and marks data points with diamonds. When the option is omitted, the MATLAB specifies that the lines are all solid, drawn in the default color order.)