Python (iv) generator and Yang Hui triangle

Learning Links:

Http://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000/ 0014317799226173f45ce40636141b6abc8424e12b5fb27000

Generator things are not very difficult, the main note under the list of the inside Listwy[-1] represents the last element of the list

Then the problem is difficult, I start to feel the mind

Practice

The Yang Hui triangle is defined as follows:

          1         /         1   1       / \ /       1   2   1     / \ / \ /     1   3   3   1   / \ / \ / \ /   1   4   6   4   1 / \ / \ / \ / \ / 1   5   10  10  5   1

Think of each line as a list, try writing a generator, and continuously output the list of the next line:

Python (iv) generator and Yang Hui triangle