import matplotlib.pyplot as plt #画图模块
import matplotlib.style as style #风格
import numpy as np
import scipy.stats as stats
import warnings
warnings.filterwarnings("ignore")
%matplotlib inline
#inline 嵌入静态图
#配置图形
#1.风格配置
style.use("seaborn")
#2.配置画布的尺寸
plt.rcParams["figure.figsize"] = (12,6)
#3.清晰度
plt.rcParams["figure.dpi"] = 100
#4.设置识别中文
plt.rcParams["font.sans-serif"] = ["SimHei"]
#rcParams['font.sans-serif'] = ['MicroSoft YaHei']
#5.当plt识别中文以后,对于数字的负号就不识别
plt.rcParams["axes.unicode_minus"] = False
X = np.linspace(-np.pi,np.pi,40)
y1 = np.sin(X)
y2 = np.cos(X)
y3 = y1+y2
y4 = y1-y2
#marker s正方 d菱形 D大菱形 o圆形 X叉
#markersize
#color = c
plt.plot(X,y1,label='sin',linestyle=