尝试这个：
import pandas as pdimport numpy as npfrom pandas import *>>> L = [4, nan ,6]>>> df = Series(L)>>> df0 41 NaN2 6>>> if(pd.isnull(df[1])): print "Found"Found>>> if(np.isnan(df[1])): print "Found"Found
尝试这个：
import pandas as pdimport numpy as npfrom pandas import *>>> L = [4, nan ,6]>>> df = Series(L)>>> df0 41 NaN2 6>>> if(pd.isnull(df[1])): print "Found"Found>>> if(np.isnan(df[1])): print "Found"Found
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