正弦函数matlab绘制图形叠加 条形图形 区域图形 饼图的绘制 阶梯图的绘制-Sine function matlab draw graphics overlay bar graph area graphical pie chart drawing ladder mapping

绘制条形图的模板，更改数据即可生成条形图，附带图例，坐标轴标签。(Draw a bar chart with legend and coordinate axis labels.)