蝈蝈什么长出来的:翻译：enter a valid login

翻译：enter a valid login you must enter a valid zip/postal code Please enter valid matching passwords.是什么意思? 删程序是提示the following file is not exist or is not a valid uninstallating log file. Enter a Member Name: 请翻译“Your birthday is not a valid entry. Please correct the error.”这是句话是什么意思？ is not a valid integer value is not a valid integer value please enter a password.是什么意思？ log a (m^n)=(log a m)^n????