How can I convert a DateTime to the number of seconds since 1970?
Thedatetimemodulesuppliesclassesformanipulatingdatesandtimes.Whiledateandtimearithmeticissupported,thefocusoftheimplementationison ...,Getsthesecondscomponentofthedaterepresentedbythisinstance.,Toconvertadatetimetoseconds,subtractstheinputdatetim...。參考影片的文章的如下: