import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
%matplotlib inline
years = [2010,2011,2012,2013,2014,2015,2016,2017]
GDPs = [256,289,302,356,389,400,402,436]
plt.plot(years,GDPs,color='green',marker='o',linestyle='solid')
plt.title('小试牛刀')
plt.ylabel('gdp')
plt.bar(years,GDPs)
plt.scatter(years,GDPs)
