python如何逆序输出数组

def printTheReverseArray(self):

 list_1 = [1, 2, 3, 4, 5, 6, 7]

 length = len(list_1)

 for i in range(0, length):

  print(length - i,end="")

def printTheReverseArray(self):

 '头插法'

 list_1 = [1, 2, 3, 4, 5, 6, 7]

 list_2 = [list_1[0]]#

 for i in range(1, len(list_1)):

  list_2.insert(0, list_1[i])

 print(list_2)

def printTheReverseArray(self):

 list_1 = [9, 6, 5, 4, 1]

 N = len(list_1)

 for i in range(int(len(list_1) / 2)):

  list_1[i], list_1[N - i - 1] = list_1[N - i - 1], list_1[i]

 print(list_1)