import pandas as pd
from pandas import DataFrame,Series
#索引自动0-N的序列
obj = Series([4,7,-5,2])
print obj
#设置索引
obj2 = Series([2,34,-6,3],index=['a','b','c','s'])
print obj2
#索引中的运算
print obj2[obj2>0]
import pandas as pd
from pandas import DataFrame,Series
#索引自动0-N的序列
obj = Series([4,7,-5,2])
print obj
#设置索引
obj2 = Series([2,34,-6,3],index=['a','b','c','s'])
print obj2
#索引中的运算
print obj2[obj2>0]
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