另外，还可以针对给定URL的最后一次下载的日期和时间使用lastUpdate属性来查询GRplistController对象，并决定何时从Web刷新数据。
You can also query the GRplistController object regarding the date and time of the last download for a given URL using the lastUpdate property and decide when to try to refresh data from the Web.
例如，Get - Date命令表面上来看，只是简单的打印出当前的日期和时间，但实际上它返回的是一个DataTime类型的对象，这个对象是。NET框剪的一部分。
For example, the Get-Date command on the surface may appear to just print out the current date and time. But in fact, it returns an object of type DateTime, which is part of the.net framework.
项和对象默认将它们的发布日期设置为当前时间(使用PHPtime函数)。
Entries and objects will set their published date to the current date (using the PHP time function) by default. Listing 6 shows the base class for entries.
HSSFCellStyle对象表示单元格的样式选项，比如字体、边框和数值格式(包括日期和时间格式)。
An HSSFCellStyle object represents style options for a cell, like font, border, and numeric formatting (including date and time formats).
此对象启用日期和时间的基本存储和检索。
An object that enables basic storage and retrieval of dates and times.
对象，该对象包含发信方开始密钥协议的日期和时间值。
Object that contains the value of the date and time of the start of the key agreement protocol by the originator.
时间对象用来操作日期和时间。
返回主体对象的集合，这些对象具有在指定日期和时间范围内帐户锁定的记录。
Returns a collection of authentication principal objects that have an account lockout time recorded in the specified date and time range.
返回主体对象的集合，这些对象具有在指定日期和时间范围内帐户到期的记录。
Returns a collection of authentication principal objects that have an account expiration time recorded in the specified date and time range.
注意：时间对象将自动把当前的日期和时间作为初始值！
Note: the date object will automatically hold the current date and time as its initial value!
注意：时间对象将自动把当前的日期和时间作为初始值！
Note: the date object will automatically hold the current date and time as its initial value!
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