Ref: rewrote the logical part of input func.
Add: insertion sort algorithm.

Initialization user input prompt function.
Initialization result output prompt function.
Import new algorithms -- directive insertion sort.

To-Do: optimize routines invoke logical.
Ref: reconstruction insertion sort method.

Optimize Loop: form "while" to more compact loop form("for").
Refactor Routines: user input prompt function.
Ref: remove redundancy operation code.

Struck out of redundancy operation code: make routines more focused on
the algorithm, enhanced program scalability.
Add: import user guide menu.

User can choose weather ascending order or descending order algorithm.
Add: user input exception handler.

Implement:
        Double roll back menu: allow user actions that more flexible.
To-Do:
        Add binary insertion sort algorithm to operations framework.