Please enter a valid date什么意思?

Please enter a valid date什么意思?

Please enter a valid date.请输入有效的日期。重点词汇valid ['vælɪd]adj.（法律上）有效的；（正式）认可的；符合逻辑的；合理的Web正当的；有根据的；正确的扩展例句1.At a minimum, the existence of a contract would serve as an authorization check; without a valid contract, the service cannot be invoked.最低限度，合同的存在将起到授权核查的作用；如果没有有效的合同，将不能调用服务。2.Once the connection is established, the certificate should be checked to see that it is valid.连接建立后，必须检查证书，以确定它是否有效。3.The time draft is to be countersigned by the Bank of China, Beijing, certifying that your signature is true and valid.汇票要由北京中国银行附签，以证明你方签字是真实有效的。4.You pass a formula used as a predicate to see if it is a valid rule for the element.您传递一个用作谓词的公式，检查它是否是一个有效的元素规则。5.SQL Injection attack is a form of attack that comes from user input that has not been checked to see that it is valid.SQL注入攻击是一种来自于用户输入数据相关的攻击，这种输入没有被检测有效性。