import matplotlib
import as plt
import numpy as np
from pylab import mpl
['-serif']=['KaiTi']
['']=['KaiTi']
labels = ['A', 'B', 'C', 'D']
a = [0.78, 0.89, 0.90, 0.65]
b = [0.25, 0.80, 0.59, 0.60]
c = [0.81, 0.50, 0.36, 0.39]
x = (len(labels)) # the label locations
width = 0.22 # the width of the bars
fig, ax = (figsize=(5,4))
rects1 = (x - width,a, width, label='数据一',alpha=1)
rects2 = (x , b, width, label='数据二',alpha=1)
rects3 = (x + width, c, width, label='数据三',alpha=1)
# Add some text for labels, title and custom x-axis tick labels, etc.
ax.set_ylabel('Y轴标签',fontsize=10)
ax.set_xlabel('X轴标签',fontsize=10)
ax.set_yticks([0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1])
ax.set_xticks(x)
ax.tick_params(direction='in')
ax.set_xticklabels(labels)
()
def autolabel(rects):
"""Attach a text label above each bar in *rects*, displaying its height."""
for rect in rects:
height = rect.get_height()
('{}'.format(height),
xy=(rect.get_x() + rect.get_width() / 2, height),
xytext=(0, 3), # 3 points vertical offset
textcoords="offset points",
ha='center', va='bottom')
autolabel(rects1)
autolabel(rects2)
autolabel(rects3)
[''] = 'in' # in; out; inout
[''] = 'in'
fig.tight_layout()
()