摘要：
//随机数 var num = Math.ceil(Math.random() * 3) console.log(num); //随机数组 var a = ['1','2','3','4','5']; console.log(a[parseInt(Math.random() * a.length)] 阅读全文
摘要：
<!doctype html> <html lang="'en"> <head> <meta charset="UTF-8"> <title>Tab切换-自动</title> <script src="js/jquery.js"></script> </head> <style> .info-flo 阅读全文