大家可以看成是有甚麼未提並且回饋
def add(x, y):
"""This function adds two numbers"""
return x + y
def subtract(x, y):
"""This function subtracts two numbers"""
return x - y
def multiply(x, y):
"""This function multiplies two numbers"""
return x * y
def divide(x, y):
"""This function divides two numbers"""
if y == 0:
return "Error: Cannot divide by zero!"
return x / y
# 選擇操作
print("Select operation.")
print("1. Add")
print("2. Subtract")
print("3. Multiply")
print("4. Divide")
choice = input("Enter choice(1/2/3/4):") # 讀取輸入，保持為字串
num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
if choice == "1":
print(num1, "+", num2, "=", add(num1, num2))
elif choice == "2":
print(num1, "-", num2, "=", subtract(num1, num2))
elif choice == "3":
print(num1, "*", num2, "=", multiply(num1, num2))
elif choice == "4":
print(num1, "/", num2, "=", divide(num1, num2))
else:
print("Invalid input")
print("I like Python") # 修正 PHP 語法錯誤
