1/7 2/7 3/7 4/7 5/7 6/7 7/7=1 www 12 45 78 X: 3 6 9 14 28 57 7*2 7*4 7*8+1
切換到程式頁面 https://scratch.mit.edu/projects/637252843/editor/ :0 https://scratch.mit.edu/projects/637252843/editor/ :) https://scratch.mit.edu/projects/637252843/editor/
