对齐直方图条-Python

我需要将柱状图的条形图居中

x = array
y = [0,1,2,3,4,5,6,7,8,9,10]

num_bins = len(array)
n, bins, patches = plt.hist(x, num_bins, facecolor='green', alpha=0.5)
barWidth=20
x.bar(x, y, width=barWidth, align='center')

plt.show()

我需要的是，它看起来像

我几乎什么都试过了，但还是不行。

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谢谢大家的任务，我认为最好用NumPy计算直方图，用bat函数绘图。请参考以下代码，了解如何使用bin_边

import matplotlib.pyplot as plt
import numpy as np

num_samples = 100
num_bins = 10
lb, ub = 0, 10 # lower bound, upper bound

# create samples
y = np.random.random(num_samples) * ub

# caluculate histogram
hist, bin_edges = np.histogram(y, num_bins, range=(lb, ub))
width = (bin_edges[1] - bin_edges[0])

# plot histogram
plt.bar(bin_edges[:-1], hist, align='center', 
        width=width, edgecolor='k', facecolor='green', alpha=0.5)
plt.xticks(range(num_bins))
plt.xlim([lb-width/2, ub-width/2])

plt.show()