Python matplot画柱状图(一)

1 import  matplotlib.pyplot as plt
2 import numpy as np
3 dict = {‘A‘: 40, ‘B‘: 70, ‘C‘: 30, ‘D‘: 85}
4 for i, key in enumerate(dict):#Circulate both index and value(Here is key)
5     plt.bar(i, dict[key], color=‘r‘, width=0.2)
6 plt.xticks(np.arange(len(dict))+0.1, dict.keys())#Translation
7 plt.yticks(dict.values())
8 plt.grid(True)
9 plt.show()