您可以使用本地存储 (HTML5)。像这样:
if (localStorage.getItem("visit") == null) {
alert("Show popup");
localStorage.setItem("visit", "true"); //Set visit to true
}
由于它是 HTML5,您可以使用以下方法创建 cookie 回调:
if (!localStorage) {
var localStorage = {
setItem: function(name, value) {
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
document.cookie = name+"="+value+expires+"; path=/";
},
getItem: function(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}
};
}