擅长:python、mysql、java
<p>您可以使用<em>append</em>选项打开一个文件,然后使用<a href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.savetxt.html" rel="nofollow">^{<cd1>}</a></p>
<pre><code>import numpy as np
array1 = np.arange(12).reshape((2, 6))
array2 = np.ones(18).reshape((3, 6))
with open('outputfile.csv', 'ab') as f:
np.savetxt(f, array1, delimiter=',')
np.savetxt(f, array2, delimiter=',')
</code></pre>