Python Learning (15)--Generator

A builder is an iterator that is defined with normal function syntax. Any function that contains a yield statement is called a generator. The generator executes at each call to next (), encounters a yield statement, and executes again from the yield statement that was last returned. But when we create a generator, we basically don't call the next () method, but instead iterate over it with a for loop.

nested = [[1,2],[3,4],[5def  Flatten (nested):    for in  nested:          for inch sublist:             yield element    for inch Flatten (nested):     Print

Python Learning (15)--Generator