我有一個(gè)清單。我想通過(guò)為每個(gè)元素添加一個(gè)共同點(diǎn)來(lái)重復(fù)這些元素。main_list = ['lst1','lst2','lst3']  # existing listnew_list = ['lst1_mean','lst1_std','lst2_mean','lst2_std','lst3_mean','lst3_std']  # expected list我的代碼：aux_list1 = [i+'_mean' for i in main_list]aux_list2 = [i+'_std' for i in main_list]new_list = [i,j for i,j in zip(aux_list1,aux_list2)]有更好的方法嗎？