matplotlib 散点图 plt.scatter()

x =[1,2,3,4,2,5]
y =[i * 2 for i in x]
print(y)
#1.绘制曲线：
import numpy as np
import matplotlib.pyplot as plt
plt.figure(figsize=(8,4))
plt.scatter(x,y,color="black",linewidth=2 )
plt.xlabel("x")
plt.ylabel("y")
plt.title("散点图")
# plt.show()
# plt.close()
plt.savefig('sandiantu.png',dpi=120,bbox_inches='tight')