python可视化---并列柱状图，,import mat

python可视化---并列柱状图，,import mat

import matplotlib.pyplot as pltimport matplotlib as mplimport numpy as npmpl.rcParams["font.sans-serif"] = ["SimHei"]mpl.rcParams["axes.unicode_minus"] = Falsex = np.arange(5)y = [6, 10, 4, 5, 1]y1 = [2, 6, 3, 8, 5]bar_width = 0.35tick_label = ["A", "B", "C", "D", "E"]plt.bar(x, y, bar_width, align="center", color="c", label="班级A", alpha=0.5)plt.bar(x+bar_width, y1, bar_width, color="b", align="center", label="班级", alpha=0.5)plt.xlabel("测试难度")plt.ylabel("试卷份数")plt.xticks(x+bar_width/2, tick_label)plt.legend()plt.show()

python可视化---并列柱状图