python while 语句 基础认知

code 正确输入 输出Hello useer

错误输入几次以下，输出code is wrong , re-enter the code
错误输入达到几次 输出The code is incorrect

a=1

while a<= 2 :

    code = input("code:")

    if code == "0620":

        print("Hello useer")

        break

    elif a == 2:

        break

    elif code != "0620" :

          a += 1

          print("code is wrong , re-enter the code")

print("The code is incorrect")