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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 = "You have clicked the button " + localStorage.clickcount + " time(s)."; } else { document.getElementById("result").innerHTML = "Sorry, your browser does not support web storage..."; } } </script> </head> <body> <p><button onclick="clickCounter()" type="button">点击我！</button></p> <div id="result"></div> <p>单击按钮来查看计数器增加。</p> <p>请关闭浏览器选项卡（或窗口），然后再试一次，计数器将继续计数（不会重置）。</p> </body> </html>