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Today I will share with you a Python method for outputting an array in reverse order. It has a good reference value and I hope it will be helpful to everyone.
Method 1: (Recommended learning: Python video tutorial)
Use a for loop to traverse from the maximum value of the array , each time a value is printed, the maximum value of the array is decremented by one, and finally the array is output in reverse order.
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="")
Method 2: Head insertion method
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)
Method 3:
Array swapping before and after
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)
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