import matplotlib.pyplot as plt import numpy as np import matplotlib as mpl mpl.rcParams["font.sans-serif"] = ["SimHei"] mpl.rcParams["axes.unicode_minus"] = False scoreT1 = np.random.randint(0, 100, 100) scoreT2 = np.random.randint(0, 100, 100) x = [scoreT1, scoreT2] colors = ["#8dd3c7", "#bebada"] labels = ["班級A", "班級B"] bins = range(0, 101, 10) plt.hist(x, bins=bins, color=colors, histtype="bar", rwidth=10, stacked=True, label=labels) plt.xlabel("測試成績") plt.ylabel("學生人數") plt.title("不同班級的測試成績的直方圖") plt.legend(loc="upper left") plt.show()

