擅长:python、mysql、java
<p>试一试</p>
<pre><code>df[:] = np.random.random(df.shape)
df
Out[283]:
A B C D
0 0.151300 0.196162 0.200368 0.775231
1 0.844184 0.611911 0.055625 0.015523
2 0.687728 0.693773 0.364394 0.357987
3 0.887951 0.882617 0.175575 0.318022
</code></pre>