<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>localStorage.</title> <script type="text/javascript"> // 关于localStorage过期时间设置 var obj = new Object(); obj.a = a; obj.time = 3600; obj.date = new Date().getTime(); // 储存到localStorage. localStorage.setItem('data', JSON.stringify(obj)); // 取值 var b = JSON.parse(localStorage.getItem('data')); var tiem = b.time; var data = b.date; if ((parseInt(time) + parseInt(data)) < new Date().getTime()) { // 如果小于说明数据时效已经过了,可以清除了.... localStorage.remove('data'); } else { // 如果大于说明数据还有效 console.log(b.a); } </script> </head> <body> </body> </html>