平均身高

老師，請我們寫一支小程式。 計算，學生的平均身高。

# 🚨 Don't change the code below 👇
student_heights = input("Input a list of student heights ").split()
for n in range(0, len(student_heights)):
  student_heights[n] = int(student_heights[n])
# print(student_heights)
# 🚨 Don't change the code above 👆

#Write your code below this row 👇

老師的提示

• 不可以使用len( ) function與sum( ) function。

Coding - Teacher Angela

student_heights = input("Input a list of student heights ").split()
for n in range(0, len(student_heights)):
  student_heights[n] = int(student_heights[n])

total_height = 0
for height in student_heights:
  total_height += height
print(f"total height = {total_height}")

number_of_students = 0
for student in student_heights:
  number_of_students += 1
print(f"number of students = {number_of_students}")
  
average_height = round(total_height / number_of_students)
print(average_height)

Coding - Student Laurence

student_heights = input("Input a list of student heights ").split()
for n in range(0, len(student_heights)):
  student_heights[n] = int(student_heights[n])
a = 0
for i in student_heights:
    a += i
a = round(a / (n + 1))    
print(a)

student_heights = input("Input a list of student heights ").split()
for n in range(0, len(student_heights)):
  student_heights[n] = int(student_heights[n])
a = 0
b = 0
for i in student_heights:
    a += i
    b += 1
a = round(a / b)    
print(a)

我在這一個練習題，卡住了一些時間。 我知道，要做什麼，但我卻不知道，該怎麼下手(coding)。

最後，靠強力隊友Tim的提示，才知道該由什麼方向著手。

1. 想像，你的左手計算著，身高的相加，總身高。
2. 想像，你的右手計算著，人數的相加，總人算。 Tim，提出的這兩個觀點，代表兩個變數。

我的邏輯思考，還有待加強。 How to think like a programmer?