04 — Update: change a value

Games need scores that change. set score to 0 starts a score, and add changes it without + or =.

#Steps

1. Create score.nme:

   set score to 0
   score add 1
   show score
   

   copyrun it →

   set score to 0 stores the number 0; score add 1 increases it. The program prints 1.

2. The value can be changed in several natural word orders:

   add 1 to score
   score increase by 1
   subtract 1 from score
   

   copyrun it →

   Add these lines one at a time and watch show score change.

3. Korean works the same way:

   점수는 0
   점수에 1 더해
   점수 보여줘
   점수에서 1 빼줘
   

   copyrun it →

4. Multiplying and dividing work the same way:

   multiply score by 2
   divide score by 2
   점수에 2 곱해
   점수를 2로 나눠
   

   copyrun it →

5. The advanced spelling += means the same thing and is valid Python:

   score += 1
   

   copy

#Try it yourself

Count up to 5 by adding, then count back down by subtracting:

set score to 0
score add 5
score subtract 2
show score

#What you learned

• set score to 0 stores a number; 점수는 0 is the Korean form.
• score add 1, add 1 to score, and score increase by 1 all add.
• subtract 1 from score / 점수에서 1 빼줘 subtract, and multiply score by 2 / 점수에 2 곱해 multiplies.
• score += 1 is the same idea in ordinary Python.