12 Final Python project

12.1 Please finish the Air force game or TicTacToe game as your final project.

• My TicTacToe Game example

12.2 Python Final practice

1. Giving a string “hello_world_yoyo”, how to get a array ["hello","world","yoyo"] ?
2. Giving a array ["hello","world","yoyo"], how to join the item in the array and get a string “hello_world_yoyo”?
3. Replace a space in a strint to “%20”, input: s=”we are happy!”, output: “we%20are%20happy.”

4. Use Python to print 99 Multiplication table

    1x1=1 
    1x2=2 2x2=4 
    1x3=3 2x3=6 3x3=9 
    1x4=4 2x4=8 3x4=12 4x4=16 
    1x5=5 2x5=10 3x5=15 4x5=20 5x5=25 
    1x6=6 2x6=12 3x6=18 4x6=24 5x6=30 6x6=36 
    1x7=7 2x7=14 3x7=21 4x7=28 5x7=35 6x7=42 7x7=49 
    1x8=8 2x8=16 3x8=24 4x8=32 5x8=40 6x8=48 7x8=56 8x8=64 
    1x9=9 2x9=18 3x9=27 4x9=36 5x9=45 6x9=54 7x9=63 8x9=72 9x9=81
   

5. Giving a sentence “Hello, welcome to my world”, find the position of world “welcome”, if not found, return “-1”.