weixin_44535532的博客

1、实现单日计算时长

0 45 12,16 * * ? 2021-01-29 16:45:00 2021-01-30 12:45:00 2021-01-30 16:45:00 2021-01-31 12:45:00 2021-01-31 16:45:00 2021-02-01 12:45:00 2021-02-01 16:45:00 2021-02-02 12:45:00 2021-02-02 16:45:00 2021-02-03 12:45:00

//产生随机数函数 function randomNum(minNum,maxNum){ switch(arguments.length){ case 1: return parseInt(Math.random()*minNum+1,10); break; case 2: return parseInt(Math.random()*(maxNum-minNum+1)+minNum,10);

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