educoder计算器python

def oper(parm_one, parm_two):
    #输入运算符   
    operator = input('请选择要执行的运算符：(+、-、*、/)：')
    print(operator)
    #*********** Begin ***********
    if operator == "+":
        print("计算结果为:", parm_one + parm_two)
    elif operator == "-":
        print("计算结果为:", parm_one - parm_two)
    elif operator == "*":
        print("计算结果为:", parm_one * parm_two)
    elif operator == "/":
        if parm_two == 0:
            print('被除数不能为0')
        else:
            print("计算结果为:", parm_one / parm_two)
   
   
    #*********** End ***********
#输入第一个数字
num_one = int(input('请输入第一个数:'))
print(num_one)
#输入第二个数字
num_two = int(input('请输入第二个数:'))
print(num_two)
#*********** Begin ***********
#调用函数
oper(num_one, num_two)     
#*********** End ***********