如何通過重復一行來連接兩個DataFrame？

Question

我有兩個DataFrame，並且我需要多次重復Cars並將其導出到.csv DataFrame_1：

Opinion    
 Cars   
 Cars
 Cars
 Cars
 Cars
 Cars
 Cars
 Cars

和DataFrame_2

  Questions
   Like Cars
   Model
   Years
   color

最終數據框

  Opinion   Questions
    Cars      Like Cars
    Cars      Model
    Cars      Years
    Cars      Color

任何允許執行此操作的熊貓功能？

Answer 1

嘗試

DataFrame_2['Opinion'] = 'Cars'