//添加cookie的值
function addCookie(name, value, expiresHours, path) {
    let cookieString = name + "=" + encodeURI(value);
    //判断是否设置过期时间,0代表关闭浏览器时失效
    if (expiresHours > 0) {
        let date = new Date();
        date.setTime(date.getTime() + expiresHours * 1000);
        cookieString = cookieString + ";expires=" + date.toUTCString();
    }
    if (path == undefined || path == "") {
        cookieString += ";path=/";
    } else {
        cookieString += ";path=" + path;
    }
    document.cookie = cookieString;
}

//修改cookie的值
function editCookie(name, value, expiresHours) {
    let cookieString = name + "=" + escape(value);
    if (expiresHours > 0) {
        let date = new Date();
        date.setTime(date.getTime() + expiresHours * 1000); //单位是毫秒
        cookieString = cookieString + ";expires=" + date.toGMTString();
    }
    document.cookie = cookieString;
}

//获取cookie的值
function getCookieValue(name) {
    let strCookie = document.cookie;
    let arrCookie = strCookie.split("; ");
    for (let i = 0; i < arrCookie.length; i++) {
        let arr = arrCookie[i].split("=");
        if (arr[0] == name) {
            return unescape(arr[1]);
            break;
        }
        // else {
        //     return "";
        //     break;
        // }
    }
    return "";
}

var delCookie = function (name) {
    var date = new Date(+new Date()-100);
    document.cookie = name + "=" + "123" + ";expires=" + date.toUTCString()+ ";path=/";
        //setCookie(name, ' ', -1);
};
var setCookie = function (name, value, day) {
         if(day !== 0){     //当设置的时间等于0时，不设置expires属性，cookie在浏览器关闭后删除
             var expires = day * 24 * 60 * 60 * 1000;
                var date = new Date(+new Date()+expires);
              document.cookie = name + "=" + escape(value) + ";expires=" + date.toUTCString();
            }else{
              document.cookie = name + "=" + escape(value);
              }
       };