<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>TT</title> <script src="jquery.js"></script> </head> <body> <p style="line-height: 50%;"><span></span></p> <input type="button" value="轻轻" onclick="syncTime()"> <script> function syncTime(){ var mydate = new Date(); var week; switch (mydate.getDay()){ case 1: week="星期一"; break; case 2: week="星期二"; break; case 3: week="星期三"; break; case 4: week="星期四"; break; case 5: week="星期五"; break; case 6: week="星期六"; break; default: week="星期天"; } var str = "" + mydate.getFullYear() + " 年 " + (mydate.getMonth() + 1) + " 月 " + mydate.getDate() + " 日 " + week; $('.todaytime')[0].innerHTML = str; str = '"savesynctime" : "' + str + '"' return str; } console.log(syncTime()); </script> </body> </html>