df2['label'] = df2['全年銷售千額'] > meanValue print(df2.head(5)) df2['label'] = df2['全年銷售千額'] > meanValue # 方法一 True=1 False=0 df2["label2"] = df2["label"].astype(int) # df2["label3"] = df2["label"].replace(False, 0) # 方法二 True=1 False=0 #df2["label3"] = df2["label"].replace(True, 1)