Python Pandas 多重过滤条件

Question

为什么第一个带有&的方法给我一个空的 dataframe，而第二个带有*的方法给我正确的一行 dataframe？

id = ["a","b","c"]
product = ["c","b","d"]
id2 = ["a", "b","z"]
type =["sdca","image","wda"]

df2[df2['id'].isin(df1['id']) * df2['type']=='image']
Out[52]: 
  id   type
1  b  image
df2[df2['id'].isin(df1['id']) & df2['type']=='image']    
Out[53]: 
Empty DataFrame
Columns: [id, type]
Index: []

Answer 1

尝试。 添加括号 -

df2[(df2['id'].isin(df1['id'])) & (df2['type']=='image')]