Python draws colorful histograms

import matplotlib.pyplot as plt
import random

x_data = ["20{}年".format(i) for i in range(16, 24)]
y_data = [random.randint(100, 300) for i in range(9)]

plt.rcParams["font.sans-serif"] = ['SimHei']
plt.rcParams["axes.unicode_minus"] = False

for i in range(len(x_data)):
    plt.bar(x_data[i], y_data[i],facecolor='crimson')

plt.title("销量分析")
plt.xlabel("年份")
plt.ylabel("销量")

plt.show()

for i in range(len(x_data)):
    plt.bar(x_data[i], y_data[i],facecolor='cornflowerblue')

for i in range(len(x_data)):
    plt.bar(x_data[i], y_data[i],facecolor='coral')

for i in range(len(x_data)):
    plt.bar(x_data[i], y_data[i],facecolor='chocolate')

for i in range(len(x_data)):
    plt.bar(x_data[i], y_data[i],facecolor='aqua')

for i in range(len(x_data)):
    plt.bar(x_data[i], y_data[i],facecolor='fuchsia')

for i in range(len(x_data)):
    plt.bar(x_data[i], y_data[i],facecolor='indianred')

for i in range(len(x_data)):
    plt.bar(x_data[i], y_data[i],facecolor='indigo')

References: https://blog.csdn.net/m0_38127487/article/details/132180215?spm=1001.2014.3001.5502
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