Wuhan University of technology Python Program Design Chapter 9 test

import numpy as np

print(np.array([1, 2, 3, 4]))

The running result of the above program is ：

B. [1 2 3 4]

import numpy as np

print(np.linspace(0, 10, 11))

The running result of the above program is ：

A. [ 0. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.]

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import numpy as np

print(np.arange(1, 11))

The running result of the above program is ：

A. [ 1 2 3 4 5 6 7 8 9 10]

The following procedure will draw a line , Add a title to the drawing ’Line charts’, The correct choice below is ：

import matplotlib.pyplot as plt

x = (1, 2, 3, 4)
y = (1, 2, 3, 4)
plt.plot(x, y)
plt.title(‘test’)
plt.show()

B. plt.title(‘Line charts’)

The function to save the drawn graph is ：

D. savefig()

In the following program ,plot() The parameters of the function