目标：我想修改pcolor图的轴，使得pcolor图不会改变而不会移动，只有轴！
import matplotlib.pyplot as plt
from matplotlib.colors import LogNorm
import numpy as np
fig, ax = plt.subplots(1,1)
phi = np.random.random([20,10])
xticks = range(10)
yticks = range(10)
ax.pcolor(phi,norm=LogNorm(vmin=10E-3, vmax=10E3))
ax.set_xticks(xticks)
ax.set_xscale("log")
ax.set_yticks(yticks)
fig.show()
