練習以下題目

add.py

import random

for i in range(3):
    # 生成1到9之間的整數亂數
    first = random.randint(1, 9)
    second = random.randint(1, 9)

    answer = int(input(f"{first} + {second} ="))
    if (first + second == answer):
        print("答對了")
    else:
        print("答錯了")

• 加法練習: 修改add.py產生5次三個0-9的整數亂數，讓小朋友回答相加的結果 (10%)

  

  • 最後告訴小朋友答對幾次 (10%)

  

substract.py

import random

for i in range(3):
    # 生成1到9之間的整數亂數
    first = random.randint(1, 9)
    second = random.randint(1, 9)
    # 如果第一個數較小，則兩數對調
    if (first < second):
        first, second = second, first

    answer = int(input(f"{first} - {second} ="))
    if (first - second == answer):
        print("答對了")
    else:
        print("答錯了")

• 減法練習:上面的substract.py產生3次兩個0-9的整數亂數，讓小朋友回答相減的結果

  • 修改程式，如果答錯，再給小朋友兩次機會 (讓小朋友同一題目可以答三次)。(10%)

  

  • 如果第一次就答對，拿3分，第二次答對拿2分，第三次答對拿1分。最後看總共得幾分。(20%)

  

chemistry.py

exams = [{"question":"氫的化學符號", "level":"B", "answer":"D", "options":["(A)He","(B)T","(C)Ti","(D)H"]},
        {"question":"氧的化學符號", "level":"B", "answer":"B", "options":["(A)Y","(B)O","(C)Yi","(D)I"]},
        {"question":"氦的化學符號", "level":"B", "answer":"B", "options":["(A)Hi","(B)He","(C)H","(D)Ha"]},
         {"question":"請選擇一個鹼金屬元素", "level":"A", "answer":"C", "options":["(A)鎂","(B)鈣","(C)鉀","(D)鐳"]},
         {"question":"請選擇一個惰性/稀有氣體", "level":"A", "answer":"A", "options":["(A)氦","(B)氫","(C)氮","(D)氯"]}
         ]
for exam in exams:
    print(exam["question"])
    for option in exam["options"]:
        print (option)
    entered = input()
    if (entered.upper() == exam["answer"]):
        print("正確")
    else:
        print("答錯了")

其中「"level":"B"」就是每一題的難度

• 改寫chemistry.py，利用程式讓小朋友進行單選題練習，最後告訴小朋友答對幾次。 (10%)

  

  • 每個題目都有對應的難度: A, B
    • B級題目可以答三次，第一次答對拿3分，第二次答對拿2分，第三次答對拿1分。(10%)
    • A級題目可以答三次，第一次答對拿5分，第二次答對拿3分，第三次答對拿1分。(20%)
    • 最後告訴小朋友得幾分。 (10%)