小编Pyt*_*sta的帖子

学习列比较。如何基于两列创建新列？

我可以做两种情况水果或蔬菜。但是对于第三个条件，做不到。:(

df
    basket1     basket2
0   fruit       fruit
1   vegetable   vegetable 
2   vegetable   both
3   fruit       both

结果

纽迪夫

    basket1    basket2    total
0   fruit      fruit      fruit
1   vegetable  vegetable  vegetable  
2   vegetable  both       Unknown
3   fruit      both      fruit

非常感谢你的帮助！