pandas-多个DataFrame同时进行merge合并

适用场景：文件夹下多个文件合并统计等

样例：

–Without further ado, go straight to the code……

#假设有表df1-df2-df3-df4 四张表
res=[df1,df2,df3,df4]

import pandas as pd
from functools import reduce 
res_merge= reduce(lambda left,right: pd.merge(left,right,on=['name'],how='left'), res)
>>res_merge
>
	name	age	sex	class score
0	关羽	1		C	   1.0
1	刘备	2			   0.0
2	卧龙	3	男	A	
3	凤雏	4	男	A	   1.0