python implements string output in reverse order

Python has two ideas for realizing string output in reverse order:

1. Write a loop to implement

Take one character of the string each time, from It can be taken from the last to the front and can be output directly, or it can be added to a new string and output together at the end.

Specific code:

m = list(a) for i in range(len(a)-1,-1,-1): print(m[i],end = '')

2. Use slicing to implement

print(a[::-1])

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