W3School TIY Editor
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<!DOCTYPE html> <html> <head> <script> function clickCounter() { if(typeof(Storage) !== "undefined") { if (localStorage.clickcount) { localStorage.clickcount = Number(localStorage.clickcount)+1; } else { localStorage.clickcount = 1; } document.getElementById("result").innerHTML = "您已经点击这个按钮 " + localStorage.clickcount + " 次。"; } else { document.getElementById("result").innerHTML = "抱歉！您的浏览器不支持 Web Storage ..."; } } </script> </head> <body> <p><button onclick="clickCounter()" type="button">请点击这里！</button></p> <div id="result"></div> <p>请点击按钮使计数器递增。</p> <p>请关闭浏览器或标签页，然后再试一次，计数器将继续计数（不会重置）。</p> </body> </html>