plt ｐｙｈｔｏｎ 画多个柱状图
import matplotlib.pyplot as pltimport matplotlib as mplimport numpy as npmpl.rcParams["font.sans-serif"] = ["SimHei"]mpl.rcParams["axes.unicode_minus"] = Falsex = np.arange(4)bar_width = 0.1tick_label = ['查准率', '召回率', 'f
