微信小程序计算请假时长（天）
需求
根据开始时间和结束时间计算请假时长（按天计算，不包括周六周日）
实现
/**
* 计算小时
* bDate 开始时间
* eDate 结束时间
*/
countHours(start_time_date, start_time_timer, end_time_date, end_time_timer) {
let bDateDayY = new Date(start_time_date)//开始时间
let bDateDayT = start_time_timer; // 上午、下午
let eDateDayY = new Date(end_time_date)//结束时间
let eDateDayT = end_time_timer;
let bisweek = bDateDayY.getDay(); //获取开始时间是周几
let eisweek = eDateDayY.getDay(); //获取结束时间是周几
if ((bisweek != 0 && bisweek != 6) && (eisweek != 0 && eisweek != 6)) {
//开始时间和结束时间都不是周末
var mosconds = eDateDayY.getTime() - bDateDayY.getTime() //时间 差的 毫秒数
let days = (eDateDayY - bDateDayY) / 1000 / 3600 / 24; //计算出相差天数
let weeks = this.checkWeekend(bDateDayY, eDateDayY, days); //周末天数
if (weeks > 0) {
//有周末
days = days - weeks; //去掉周末天数
if ((bDateDayT == '下午' && eDateDayT == '上午')) {
//开始时间是下午，结束时间是上午
days = days - 0.5; //去掉半天
}
if ((bDateDayT == '下午' && eDateDayT == '下午')) {
//开始时间是下午，结束时间是下午
days = days; //不用去掉半天
}
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
//开始时间是上午，结束时间是下午
days = days + 1; //加一天
}
if ((bDateDayT == '上午' && eDateDayT == '上午')) {
//开始时间是上午，结束时间是上午
days = days + 0.5; //加半天
}
return days; //返回天数
} else {
//没有周末
if (mosconds == 0) {
//同天
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
//开始时间是上午，结束时间是下午
days = days + 1; //加一天
}
if (eDateDayT == '上午') {
//结束时间是上午
days = days + 0.5; //加半天
}
return days;
} else {
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
days = days + 1;
}
if ((bDateDayT == '上午' && eDateDayT == '上午')) {
days = days + 0.5;
}
if ((bDateDayT == '下午' && eDateDayT == '上午')) {
days = days + 0.5;
}
if ((bDateDayT == '下午' && eDateDayT == '下午')) {
days = days + 0.5;
}
return days;
}
}
} else if ((bisweek == 0 || bisweek == 6) || (eisweek == 0 || eisweek == 6)) {
//开始时间或结束时间是周末
if ((bisweek == 6 && eisweek == 0) || (bisweek == 6 && eisweek == 6) || (bisweek == 0 && eisweek == 0)) {
//开始时间是周六或周日，结束时间是周日或周六
// wx.showModal({
// title: '提示',
// content: '这段时间休息不需要请假！',
// })
let days = 0;
return days;
} else {
//开始时间是周末，结束时间是工作日
if (bisweek == 0 || bisweek == 6) {
var mosconds = eDateDayY.getTime() - bDateDayY.getTime() //时间 差的 毫秒数
let days = (eDateDayY - bDateDayY) / 1000 / 3600 / 24; //计算出相差天数
let weeks = this.checkWeekend(bDateDayY, eDateDayY, days); //周末天数
if (weeks > 0) {
if (days >= weeks) {
days = days - weeks;
if ((bDateDayT == '下午' && eDateDayT == '上午')) {
days = days - 0.5;
}
if ((bDateDayT == '下午' && eDateDayT == '下午')) {
days = days;
}
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
days = days + 1;
}
if ((bDateDayT == '上午' && eDateDayT == '上午')) {
days = days + 0.5;
}
} else {
days = 0
}
return days;
} else {
//没有周末
if (mosconds == 0) {
//同天
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
days = days + 1;
}
if (eDateDayT == '上午') {
days = days + 0.5;
}
return days;
} else {
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
days = days + 1;
}
if ((bDateDayT == '上午' && eDateDayT == '上午')) {
days = days + 0.5;
}
if ((bDateDayT == '下午' && eDateDayT == '上午')) {
days = days + 0.5;
}
if ((bDateDayT == '下午' && eDateDayT == '下午')) {
days = days + 0.5;
}
return days;
}
}
// wx.showModal({
// title: '提示',
// content: '开始日期不可为周末',
// })
}
if (eisweek == 0 || eisweek == 6) {
var mosconds = eDateDayY.getTime() - bDateDayY.getTime() //时间 差的 毫秒数
let days = (eDateDayY - bDateDayY) / 1000 / 3600 / 24; //计算出相差天数
let weeks = this.checkWeekend(bDateDayY, eDateDayY, days); //周末天数
if (weeks > 0) {
if (days >= weeks) {
days = days - weeks;
if ((bDateDayT == '下午' && eDateDayT == '上午')) {
days = days + 0.5;
}
if ((bDateDayT == '下午' && eDateDayT == '下午')) {
days = days + 0.5;
}
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
days = days;
}
if ((bDateDayT == '上午' && eDateDayT == '上午')) {
days = days;
}
} else {
days = 0
}
return days;
} else {
if (mosconds == 0) {
//同天
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
days = days + 1;
}
if ((bDateDayT == '下午' && eDateDayT == '下午')) {
days = days + 0.5;
}
if ((bDateDayT == '上午' && eDateDayT == '上午')) {
days = days + 0.5;
}
return days;
} else {
if ((bDateDayT == '上午' && eDateDayT == '下午')) {
days = days + 1;
}
if ((bDateDayT == '上午' && eDateDayT == '上午')) {
days = days + 0.5;
}
if ((bDateDayT == '下午' && eDateDayT == '上午')) {
days = days + 0.5;
}
if ((bDateDayT == '下午' && eDateDayT == '下午')) {
days = days + 0.5;
}
return days;
}
}
// wx.showModal({
// title: '提示',
// content: '结束日期不可为周末',
// })
}
}
}
}
checkWeekend(beginDay, endDay, days) {
var weekEndCount = 0;
if (days < 1) {
//判断开始时间是否是周末
if (beginDay.getDay() == 6 || beginDay.getDay() == 0) {
weekEndCount += 1;
}
} else if (days < 7) {
if (beginDay.getDay() < endDay.getDay() && endDay.getDay() == 6) {
weekEndCount += 1;
}
else if (beginDay.getDay() < endDay.getDay() && beginDay.getDay() == 0) {
weekEndCount += 1;
} else if (beginDay.getDay() > endDay.getDay()) {
weekEndCount += 2;
}
}
else if (days >= 7) {
if (days % 7 > 1) {
//以周六为界限，判断开始时间和周六的差值与总天数除以7的余数的关系判断是否需要增加额外的周末
if (6 - beginDay.getDay() == days % 7) {
weekEndCount += parseInt(days / 7) * 2;
} else if (6 - beginDay.getDay() + 1 == days % 7) {
weekEndCount += parseInt(days / 7) * 2;
weekEndCount += 1;
} else {
weekEndCount += parseInt(days / 7) * 2;
weekEndCount += 2;
}
} else {
weekEndCount += parseInt(days / 7) * 2;
}
}
return weekEndCount;
},