【Python程序设计】——重点题目（期末不挂科）

Python程序设计是计算机科学专业的一门重要课程，学习Python编程语言可以帮助学生掌握基本的编程技能和算法思维。下面我们来看一些重点题目，希望大家能够认真学习，期末不挂科！

1. 编写一个Python程序，实现一个简单的计算器功能，可以进行加减乘除运算。代码示例如下：

def add(x, y):
 return x + ydef subtract(x, y):
 return x - ydef multiply(x, y):
 return x * ydef divide(x, y):
 if y ==0:
 return "Error! Division by zero!"
 else:
 return x / yprint("Select operation:")
print("1. Add")
print("2. Subtract")
print("3. Multiply")
print("4. Divide")

choice = input("Enter choice(1/2/3/4): ")

num1 = float(input("Enter first number: "))
num2 = float(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")

import randomnumber = random.randint(1,100)
guess =0while guess != number:
 guess = int(input("Enter an integer from1 to100: "))
 if guess < number:
 print("Guess is too low")
 elif guess > number:
 print("Guess is too high")
 else:
 print("Congratulations! You guessed it!")