英文 is not a valid integer value 是什么意识啊

XXX is not a valid integer value is not a valid date and time 请问:" is not a valid date this is not a valid serial number? Full name is NOT a valid "0.0 ' is not a valid timestamp 英文救教!看不懂bin is not a valid previous version and could not be 2014-03-04 is not a valid date and time 这句话中文是什么意 Enter a valid value for this Please enter a valid value.是什么意思 if y is a integer,then the least possible value of |23-5y|is what is the least posutive integer that is not a