Comments can tell you something does,and they also are used to disable parts of your program if you need remove them temporarily.
# In python,anything ignored after use '#' print "I want write this thing" #comment is ignored # print "這串不會執行" print "這會執行"
Variables is a thing to represent 'Something" in your code. Programmers use varibles to make code read more like English or other language.
cake=50 people=20 tottal_cake_and_people = cake+people print "There have",cake,"cake to eat." print "We have",people," want to eat cake today." print "If everybody want to eat cake we need at least",tottal_cake_and_people,"cake"