javascript - JS : Timer continue even after page is refreshed

Question

我想编辑此内容，以便计时器不会在每次刷新页面时更新。

我进行了搜索，在我的情况下，AJAX 不是一个选项，因为我的代码页需要刷新，而计时器仍然相同。

此外，我尝试将其保存在 session 中，但这对 JS 不起作用。

JS:

  var mins
  var secs;

function cd() {
mins = 1 * m("5"); // change minutes here
secs = 0 + s(":01"); 
redo();
}

function m(obj) {
for(var i = 0; i < obj.length; i++) {
    if(obj.substring(i, i + 1) == ":")
    break;
}
return(obj.substring(0, i));
 }

  function s(obj) {
for(var i = 0; i < obj.length; i++) {
    if(obj.substring(i, i + 1) == ":")
    break;
}
return(obj.substring(i + 1, obj.length));
}

function dis(mins,secs) {
    var disp;
    if(mins <= 9) {
        disp = " 0";
    } else {
        disp = " ";
    }
    disp += mins + " .";
    if(secs <= 9) {
        disp += "0" + secs;
    } else {
        disp += secs;
    }
    return(disp);
}

function redo() {
    secs--;
    if(secs == -1) {
        secs = 59;
        mins--;
    }
    document.cd.disp.value = dis(mins,secs); // setup additional displays here.
    if((mins == 0) && (secs == 0)) {
        window.alert(" Hey Time is up. Press OK to continue."); 
         window.location = "results_random.php" // redirects to specified page once timer ends and ok button is pressed
    } else {
        cd = setTimeout("redo()",1000);
    }
}

function init() {
  cd();
    }
     window.onload = init;
     </script>

形式:

<form name="cd">
 <label>
 <span class="labe">Remaining Time</span>:
 <input name="disp" type="text" class="clock" id="txt" value="10:00" size="10"      readonly="true" align="right" border="1" />
 <span class="labe">Minutes</span>
</form>

希望能帮到你，谢谢。

Answer 1

将计时器的值存储在 cookie 中并从该 cookie 中提取它，在此处阅读 cookie:http://www.w3schools.com/js/js_cookies.asp