kind | sale |
小说 | 20000 |
诗歌 | 1500 |
…… | …… |
import pandas as pd import matplotlib. pyplot as plt df = pd. read_csv('sales. csv', encoding='ANSI') # 读取csv文件 plt. rcParams['font. sans-serif']= ['SimHei'] # 支持中文,用于正常显示中文标签 plt. __①___ ('书店一年各类书籍销量') # 添加图形标题 __②___ ('种类') # 添加图形x轴标题 __③___ ('销量') # 添加图形y轴标题 plt. bar(__④___) # 绘制柱状图 plt. show() |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2