绘图 ....\bar_hist.m ....\bar_hist_2.m ....\cos.m ....\hold_on.m ....\hold_on_2.asv ....\hold_on_2.m ....\plot_1.asv ....\plot_1.m ....\sin.m ....\sin_label.m ....\sin_text.m ....\stem.m ....\subplot.m ....\subplot_axes.m ....\text.asv ....\text.m