if statement

def max_num(num1,num2,num3):
    print('this is max_num1')
    return(max(num1,num2,num3))
print(max_num(2,3,108))

def max_num(num1,num2,num3):
    print('this is max num2')
    if num1>=num2 and num1>=num3:
        return num1
    elif num2>=num1 and num2>=num3:
        return num2
    else:
        return num3
print(max_num(2,111,111111))

進階計算機(可加減乘除運算)

num1 = float(input("請輸入第一個數字: "))
op = input("請輸入運算符號: ")
num2 = float(input("請輸入第二個數字: "))

if op=="+":
    print(num1+num2)
elif op=="-":
    print(num1-num2)
elif op=="*":
    print(num1*num2)
elif op=="/":
    print(num1/num2)
else:
    priint("不支援的運算")