您需要为"axes.prop_cycle"rcParameter提供一个颜色循环。一个颜色循环由颜色列表组成。可以根据颜色图进行选择。请参见下面的示例：
import matplotlib.pyplot as plt
from cycler import cycler
import numpy as np
# get colormap
cmap=plt.cm.gist_rainbow
# build cycler with 5 equally spaced colors from that colormap
c = cycler('color', cmap(np.linspace(0,1,5)) )
# supply cycler to the rcParam
plt.rcParams["axes.prop_cycle"] = c
x = np.linspace(0,2*np.pi)
f = lambda x, phase:np.sin(x+phase)
for i in range(30):
plt.plot(x,f(x,i/30.*np.pi) )
plt.show()
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