怎么用calculate表示多个计算符号

Question

他让定义一个计算符号变量，但是不会定义，希望能帮帮我如果没错的话应该是用if-else语句吧

Answer 1

mum1 = eval(input("请输入num1的值:"))
calculate = input("请输入运算符:")
mum2 = eval(input("请输入num2的值:"))
if calculate == "+":
    print("mum1{}mum2={}".format(calculate, mum1 + mum2))
elif calculate == "-":
    print("mum1{}mum2={}".format(calculate, mum1 - mum2))
elif calculate == "*":
    print("mum1{}mum2={}".format(calculate, mum1 * mum2))
elif calculate == "/" and mum2 != 0:
    print("mum1{}mum2={}".format(calculate, mum1 /mum2))
elif calculate == "/" and mum2 == 0:
    print("mum2的值不能等于0")
else:
    print("你输入的运算符为:{}请输入正确的运算符!".format(calculate))