问Python 3中的Do while循环

EN

while True:
    try:
        #insert your "loop" here
        [.....]
        
    except ValueError:
        #restart the loop
        continue

    else:
        #exit the loop
        break

while True:
    while True:
        num1 = input("Enter First Number: ")
        if num1.lower() == "quit":
            quit()
        try:
            num1 = int(num1)
            break
        except ValueError:
            print(f"{num1} is not an integer.")

    while True:
        num2 = input("Enter second number: ")
        if num2.lower() == "quit":
            quit()
        try:
            num2 = int(num2)
            break
        except ValueError:
            print(f"{num2} is not an integer.")

    op = input("Enter Operator: ")
    if op.lower() == "quit":
        quit()

    if op == "*":
        print(num1 * num2)
    elif op == "+":
        print(num1 + num2)
    elif op == "-":
        print(num1 - num2)
    elif op == "/":
        print(num1 / num2)
    elif op == "%":
        print(num1 % num2)
    else:
        print("Invalid Operator")