matplotlib3常见图形的绘制

import matplotlib.pyplot as plt
import random
from pylab import mpl

设置显示中文字体

mpl.rcParams["font.sans-serif"] = ["SimHei"]

设置正常显示符号

mpl.rcParams["axes.unicode_minus"] = False

0.准备X,Y坐标的数据

x：电影名字

movie_name = ["雷神3","正义联盟","东方快车","寻梦环游记","全球风暴","降魔传","追捕","七十七天","密战","狂兽","其它"]

x = range(len(movie_name))

y:票房数据

y = [73835,57767,22354,15969,14839,8716,8318,7916,6764,52222,13453]

1.创建画布

plt.figure(figsize=(20,8),dpi=100) #figsize,设置图像大小比例为20:8，dpi,图像的清晰度

2.绘制图像

plt.bar(movie_name,y,width=0.5,color=["b","r","g","y","c","m","y","k","c","g","b"])

2.1 修改x轴的刻度显示

plt.xticks(movie_name,movie_name) #其实我感觉是多此一举，或许后面有更多的考量

2.2 添加网格线显示

plt.grid(linestyle="--",alpha = 0.5 )

2.3 添加标题

plt.title("电影票房收入比")

plt.show()