我正在执行以下示例并不断收到错误:
import pandas as pd import quandl df = quandl.get('WIKI/GOOGL') df = [['Adj. Open','Adj. High','Adj. Low','Adj. Close','Adj. Volume']] print(df.head())
类型错误:列表索引必须是整数或切片,而不是 str
types dataframe
dataframe ×1
types ×1