数据可视化之matplotlib实战：plt.bar() 绘制不同图案柱状图

import matplotlib as mpl import matplotlib.pyplot as plt import numpy as np # 防止乱码 mpl.rcParams["font.sans-serif"] = ["SimHei"] mpl.rcParams["axes.unicode_minus"] = False # 生成数据 x = [1,2,3,4,5] y = [6,10,4,5,1] # 生成柱状图 # hatch = "/" "\\" "|" "-" plt.bar(x,y,align="center",color="c",tick_label=["A","B","C","D","E"],hatch="\\") plt.xlabel("测试难度") plt.ylabel("试卷份数") plt.show()