# df_ = pd.read_clipboard()
# 选择列名包含关键词的列
columns_select = df_.columns.str.contains('铝价') # 列名是否包含关键词
columns_select_index = pd.DataFrame(columns_select, columns= ['columns_select']).query("columns_select").index.values # 包含关键词的列名的索引
df_.iloc[:, columns_select_index]
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