Everfighting · February 4, 2021 08:12
diff --git a/df_assgin b/df_assgin

 s=pd.Series([11,12,13],name='S')
 data=np.arange(21,24)
 df=pd.DataFrame({'A':[31,32,33],'B':[41,42,43]})
 fun=lambda x:x.A+x.B
 
 df.assign(C=fun,D=df.A+df.B,E=s,F=data)#增加新列
 
   A  B  C  D  E  F
 0 31 41 72 72 11 21
 1 32 42 74 74 12 22
 2 33 43 76 76 13 23

	s=pd.Series([11,12,13],name='S')
	data=np.arange(21,24)
	df=pd.DataFrame({'A':[31,32,33],'B':[41,42,43]})
	fun=lambda x:x.A+x.B

	df.assign(C=fun,D=df.A+df.B,E=s,F=data)#增加新列

	A B C D E F
	0 31 41 72 72 11 21
	1 32 42 74 74 12 22
	2 33 43 76 76 13 23