delphi SecsPerDay：一天共有多少秒
声明：const SecsPerDay = 86400;
描述：MinsPerDay常量给出一天中秒的数量（24*60*60＝86400）。
begin
ShowMessage('Number of minutes in a week = '+IntToStr(MinsPerDay*7));
ShowMessage('Number of seconds in a week = '+IntToStr(SecsPerDay*7));
end;
程序运行结果：
Number of minutes in a week = 10080
Number of seconds in a week = 604800
描述：MinsPerDay常量给出一天中秒的数量（24*60*60＝86400）。
begin
ShowMessage('Number of minutes in a week = '+IntToStr(MinsPerDay*7));
ShowMessage('Number of seconds in a week = '+IntToStr(SecsPerDay*7));
end;
程序运行结果：
Number of minutes in a week = 10080
Number of seconds in a week = 604800
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