擅长:python、mysql、java
<p>你说展示是什么意思?不是<code>df['gvkey']</code>给你gvkey列中的数据吗?</p>
<p>如果您要做的是将整个数据帧打印到控制台,那么请查看<code>df.to_string()</code>,但是如果列太多,则很难读取。如果列太多,Pandas默认不会打印全部内容:</p>
<pre><code>import pandas
import numpy
df1 = pandas.DataFrame(numpy.random.randn(10, 3), columns=['col%d' % d for d in range(3)] )
df2 = pandas.DataFrame(numpy.random.randn(10, 30), columns=['col%d' % d for d in range(30)] )
print df1 # <--- substitute by df2 to see the difference
print
print df1['col1']
print
print df1.to_string()
</code></pre>