怎么自己设置python里面的colorbar

汐年

然后我看matplotlib的官网 ，上面有代码
viridis = cm.get_cmap('viridis', 256)newcolors = viridis(np.linspace(0, 1, 256))pink = np.array([248/256, 24/256, 148/256, 1])newcolors[:25, :] = pinknewcmp = ListedColormap(newcolors)def plot_examples(cms):    """    helper function to plot two colormaps    """    np.random.seed(19680801)    data = np.random.randn(30, 30)    fig, axs = plt.subplots(1, 2, figsize=(6, 3), constrained_layout=True)    for [ax, cmap] in zip(axs, cms):        psm = ax.pcolormesh(data, cmap=cmap, rasterized=True, vmin=-4, vmax=4)        fig.colorbar(psm, ax=ax)    plt.show()plot_examples([viridis, newcmp])但是 能有人懂[size=0.9em]for[size=0.9em] [size=0.9em][[size=0.9em]ax[size=0.9em],[size=0.9em] [size=0.9em]cmap[size=0.9em]][size=0.9em] [size=0.9em]in[size=0.9em] [size=0.9em]zip[size=0.9em]([size=0.9em]axs[size=0.9em],[size=0.9em] [size=0.9em]cms[size=0.9em]):建立这个for循环是为了做什么呢?我在使用时总是报错 ValueError: need more than 0 values to unpack，能有人解释一下吗？万分感谢