qt建立一个时钟 显示日期和时间。简单的例子-qt build a clock displays the date and time.

增加一个小时钟、以及一处字体选择对话框，并修改一处输入框的字体，输入的信息可以显示在个人说明的文本框里。(Add a small clock, and a font selection dialog box, and modify the font of an input box, and the input information can be displayed in the text box of the personal descr iption.)