imaplib.error：命令SEARCH在状态AUTH中非法，只允许在SELECTED状态(imaplib.error: command SEARCH illegal in state AUTH, only allowed in states SELECTED)

 这里有一个Javascript版本，你可以传递它应该开始计算的日期，你想要知道苹果的数量的日期，一周中的苹果将被添加，一天中的更新将发生以及将在每个日期添加的苹果数量。 
 
Date.prototype.addDays = function (days) {
    var result = new Date(this);
    result.setDate(result.getDate() + days);
    return result;
}
Date.prototype.addHours = function (hours) {
    var result = new Date(this);
    result.setHours(result.getHours() + hours);
    return result;
}

function getApples(startdate, date, updateDays, updateTime, applesPerUpdate) {
    var startDay = startdate.getDay();
    var firstUpdateDate;
    for(day of updateDays) {
        if (day >= startDay) {//assumes startdate has no time added
            firstUpdateDate = startdate.addDays(day - startDay).addHours(updateTime);
            break;
        }
    }
    if (!firstUpdateDate)
        firstUpdateDate = startdate.addDays(7 - (startDay - updateDays[0])).addHours(updateTime);

    var updateDaysReverse = updateDays.slice(0).reverse();//clones the array

    var dateDay = date.getDay();
    var lastUpdateDate;
    for(day of updateDaysReverse) {
        if (day < dateDay || day == dateDay && date.getHours() > updateTime) {
            lastUpdateDate = date.addDays(day - dateDay);
            break;
        }
    }
    if (!lastUpdateDate)
        lastUpdateDate = date.addDays(updateDaysReverse[0] - (7 + dateDay));
    lastUpdateDate = new Date(Date.UTC(1900 + lastUpdateDate.getYear(), lastUpdateDate.getMonth(), lastUpdateDate.getDate(), updateTime, 0, 0, 0));

    var secs = Math.trunc((lastUpdateDate - firstUpdateDate));
    if (secs < 0) return 0;

    var dayDiffs = [];
    for(day of updateDays)
        dayDiffs.push(day - updateDays[0]);

    var weeks = Math.trunc(secs / 604800000);
    var days = Math.trunc((secs % 604800000) / 86400000);
    var apples = weeks * updateDays.length;

    for(diff of dayDiffs)
    {
        if (diff <= days)
            apples++;
        else
            break;
    }
    return apples * applesPerUpdate;
}
// important, day and month is zero-based
var startDate = new Date(Date.UTC(2016, 01, 07, 0, 0, 0, 0));
var updateDays = [2, 4];// 0 = sunday , have to be in order and must be 0 <= x < 7
var updateTime = 9;

console.log(getApples(startDate, new Date(), updateDays, updateTime, 2));
 
 比我更复杂，我没有多少测试，所以可能有错误。 
 
 这是一个玩弄价值观的人。 

Here a Javascript version, you can pass it the date it should start counting, the date you want to know the ammount of apples of, the days of the week apples will be added, the hours of the day the updat will take place and the ammount of apples that will be added on each of these dates.
 
Date.prototype.addDays = function (days) {
    var result = new Date(this);
    result.setDate(result.getDate() + days);
    return result;
}
Date.prototype.addHours = function (hours) {
    var result = new Date(this);
    result.setHours(result.getHours() + hours);
    return result;
}

function getApples(startdate, date, updateDays, updateTime, applesPerUpdate) {
    var startDay = startdate.getDay();
    var firstUpdateDate;
    for(day of updateDays) {
        if (day >= startDay) {//assumes startdate has no time added
            firstUpdateDate = startdate.addDays(day - startDay).addHours(updateTime);
            break;
        }
    }
    if (!firstUpdateDate)
        firstUpdateDate = startdate.addDays(7 - (startDay - updateDays[0])).addHours(updateTime);

    var updateDaysReverse = updateDays.slice(0).reverse();//clones the array

    var dateDay = date.getDay();
    var lastUpdateDate;
    for(day of updateDaysReverse) {
        if (day < dateDay || day == dateDay && date.getHours() > updateTime) {
            lastUpdateDate = date.addDays(day - dateDay);
            break;
        }
    }
    if (!lastUpdateDate)
        lastUpdateDate = date.addDays(updateDaysReverse[0] - (7 + dateDay));
    lastUpdateDate = new Date(Date.UTC(1900 + lastUpdateDate.getYear(), lastUpdateDate.getMonth(), lastUpdateDate.getDate(), updateTime, 0, 0, 0));

    var secs = Math.trunc((lastUpdateDate - firstUpdateDate));
    if (secs < 0) return 0;

    var dayDiffs = [];
    for(day of updateDays)
        dayDiffs.push(day - updateDays[0]);

    var weeks = Math.trunc(secs / 604800000);
    var days = Math.trunc((secs % 604800000) / 86400000);
    var apples = weeks * updateDays.length;

    for(diff of dayDiffs)
    {
        if (diff <= days)
            apples++;
        else
            break;
    }
    return apples * applesPerUpdate;
}
// important, day and month is zero-based
var startDate = new Date(Date.UTC(2016, 01, 07, 0, 0, 0, 0));
var updateDays = [2, 4];// 0 = sunday , have to be in order and must be 0 <= x < 7
var updateTime = 9;

console.log(getApples(startDate, new Date(), updateDays, updateTime, 2));
 
Was more coplicated than I thaught, and i havn't testet it much, so there may be bugs.
 
Here is a plunker to play with the values.