Python语法无效，不断出错

Question

所以我试着编写代码已经有一段时间了。在我遇到这个问题之前，一切都很简单，也很有趣。我所要做的只是一个简单的计算器，但每次我试图运行这个程序，我总是得到一个错误。我已经重写了它在论坛上检查，并要求许多人的帮助，没有运气，我没有找到任何正确的答案。下面是代码，请告诉我问题所在。你知道吗

print("Welcome To Bargi's Calculator")
print("Enjoy")

#Returns the sum of no1 and no2    
def Add(no1, no2):
    return no1 + no2

#Returns the subtraction of no1 and no2
def Subtract(no1, no2):
    return no1 - no2

#Returns the multiplication of no1 and nom2
def Multiply(no1, no2):
    return no1 * no2

#Returns the division of no1 and no
def Divide(no1, no2):
    return no1 / no2

def main():
    operation = input("What do you want to do? (+, -, * or /):")
    if(operation != "+" and operation != "-" and operation != "*" and operation != "/" ):
        #invalid operation
        print("Please Put In A Valid Answer.")
    else:
        num1 = int(input("Enter no1: ")
        num2 = int(input("Enter no2: ")
        if(operation == "+"):
             print(Add(num1, num2))
        if(operation == "-"):
             print(Subtract(num1, num2))
        if(operation == "*"):
            print(Multiply(num1, num2))
        if(operation == "/"):
            print(Divide(num1, num2))

main()

Answer 1

以下几行缺少右括号：

num1 = int(input("Enter no1: ")
num2 = int(input("Enter no2: ")

因此，在num2行上会出现语法错误，因为Python从未找到从前一行开始的逻辑行的结尾。你知道吗

平衡括号：

num1 = int(input("Enter no1: "))
num2 = int(input("Enter no2: "))

否则你的代码就行了。你知道吗