localstorage、 sessionstorage、 cookie｜刘景照的博客

localStorage.myName = 'liujingzhao';
localStorage['myName'] = 'liujingzhao';
localStorage.setItem('SEX','MAN');
localStorage.getItem('SEX');
localStorage.getItem('sex');
console.log(localStorage.length);
// key存在大小写区分。
// localStorage.setItem('sex','man');
localStorage.removeItem('SEX');
localStorage.clear();
//  移除所有数据

localStorage.setItem('1','liujingzhao,m,25,edu');
localStorage.setItem('2','sunhui,w,25,edu');
for(var k in localStorage){
    console.log(localStorage.getItem(k));
}
// liujingzhao,m,25,edu
// sunhui,w,25,edu

sessionStorage.setItem('key','value');
sessionStorage.getItem('key');
sessionStorage.removeItem('key');
console.log(sessionStorage.length);
sessionStorage.clear();

function (name, value, days) {
    days = days || 0;
    var expires = "";
    if (days != 0) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 3600 * 1000));
        // getTime() 方法可返回距 1970 年 1 月 1 日之间的毫秒数
        // setTime() 方法以毫秒设置 Date 对象。
        expires = "; expires=" + date.toGMTString();
    }
    document.cookie = name + "=" + escape(value) + expires + "; path=/";
}
function getcookie(name) {
    var strcookie = document.cookie;
    var arrcookie = strcookie.split("; ");
    for (var i = 0; i < arrcookie.length; i++) {
        var arr = arrcookie[i].split("=");
        if (arr[0] == name)
            return arr[1];
    }
    return "";
}
function delCookie(name) { //删除cookie
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval = getcookie(name);
    if (cval != null)
        document.cookie = name + "=" + cval + "; path=/;expires=" + exp.toGMTString();
}