else in the Python loop that you don't know

In many languages, if else is a combination of conditions, but there are more places in Python where else is used, such as loop for, or while can be combined with else.

Here is a brief introduction to For-else While-else combination

In the case of the else execution in the loop combination, the loop ends normally (that is, it is not exited with break). such as the following code:

numbers = [1,2,3,4,5]for N in Numbers:    if (n > 5):        print (' The value is%d '% (n))        Breakelse:    print (' The For loop does not end with break ')     i = 0while (Numbers[i] < 5):    print (' The index%d value is%d '% (I, numbers[i])    if (Numbers[i] < 0): Break    i = i + 1else:    print (' The loop does not end with break ')   numbers = [ 1,2,3,4,5]for N in numbers:    if (n > 5):        print (' The value was%d '% (n))        Breakelse:    print (' The For loo P does not end with break ')    i = 0while (Numbers[i] < 5):    print (' The index%d value is%d '% (I, numbers[i])) 
  if (Numbers[i] < 0):        break    i = i + 1else:    print (' The loop does not end with break ')

The results of the implementation are as follows:

C:\python27>python.exe for_else.pythe for loop does not end with Breakthe index 0 value is 1the index 1 value is 2the I Ndex 2 value is 3the index 3 value was 4the loop does not end with break

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