#History: Grace Hopper probably one of the first programmers and one of the pioneers of the job

#describe the Problem

1. Try to make sense of what’s going on
2. Debugging problem

#Describe Problem
def my_function:
		#for i in range(1,20): 
		for i in range(1,21):
			# 這裡有邏輯上的錯誤, range最後的 number 是 20, 只會取到19, 若要取20的話, last number要是21
			if i == 20:
				print("You go it")

my_function()

#Reprodue the Bug

from random impoort randint
dice_imgs = ["1","2","3","4","5","6"]
dice_num = randint(1,6)
print(dice_imgs[dice_num])

#IndexError: list index out of range
#index of list maximum is 5
#index 6 of element is not exist in list, so that why it's out of range

#Playt Computer and Evaluate Each Line

year = int(input("what's your year of birth?"))
#if year > 1980 and year <= 1994:
if year > 1980 and year < 1994:
		print("Yhour are a millenial.")
#elif year >= 1994:
elif year > 1994:
		print("You are a Gen Z.")

#Print nothing above code due to once year = 1994 no condition be matched 

#Fixing Errors and Watching for Red Underlines

#age = input("How old are you")
age = int(input("How old are you"))
#TypeError, age shall be int type
if age > 18:
# Identation error
#print(f"You can drive at age {age}.")
		print(f"You can drive at age {age}.")

#Squash bugs with a print() Statement

note:

pages = 0
word_per_page = 0
pages = int(input("Number of apges: "))

#邏輯錯誤, 以下這行等於0
#word_per_page == int(input("Number of words per page : "))
#應改成如下=
word_per_page = int(input("Number of words per page : "))

total_words = pages * word_per_page
#Print is your friend
print(f"pages = {pages}")
print(f"word_per_page = {word_perpage}")
print(total_words)

#Bringing out the Big Gun: Using a Debugger

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