DataFrame选择单列
import pandas as pd # 创建示例 DataFrame data = { 'A': [1, 2, 3], 'B': ['a', 'b', 'c'] } df = pd.DataFrame(data) # 选择单列 'A' column_A = df['A'] print(column_A) # 选择单列 'A' column_A = df.A print(column_A)
import pandas as pd # 创建示例 DataFrame data = { 'A': [1, 2, 3], 'B': ['a', 'b', 'c'] } df = pd.DataFrame(data) # 选择单列 'A' column_A = df['A'] print(column_A) # 选择单列 'A' column_A = df.A print(column_A)