工作日计算

复制from datetime import datetime, timedelta

# 计算起始日 +N 个工作日（跳过周六日）
start = datetime(2025, 3, 1)  # 周六
n = 3
count = 0
current = start
while count < n:
    current += timedelta(days=1)
    if current.weekday() < 5:  # 周一=0，周日=6
        count += 1
print(f"{start.date()} + {n} 工作日 = {current.date()}")  # 2025-03-05（周三）

# 计算区间内工作日数（含起止日）
start = datetime(2025, 3, 3)  # 周一
end = datetime(2025, 3, 7)    # 周五
workdays = sum(1 for i in range((end - start).days + 1)
               if (start + timedelta(days=i)).weekday() < 5)
print(f"{start.date()} 到 {end.date()} 共 {workdays} 个工作日")  # 5

复制package main

import (
	"fmt"
	"time"
)

func main() {
	// 计算起始日 +N 个工作日
	start := time.Date(2025, 3, 1, 0, 0, 0, 0, time.UTC) // 周六
	n := 3
	count := 0
	current := start
	for count < n {
		current = current.Add(24 * time.Hour)
		if current.Weekday() != time.Saturday && current.Weekday() != time.Sunday {
			count++
		}
	}
	fmt.Printf("%s + %d 工作日 = %s\n", start.Format("2006-01-02"), n, current.Format("2006-01-02")) // 2025-03-05

	// 计算区间内工作日数（含起止日）
	start = time.Date(2025, 3, 3, 0, 0, 0, 0, time.UTC) // 周一
	end := time.Date(2025, 3, 7, 0, 0, 0, 0, time.UTC)   // 周五
	workdays := 0
	for d := start; !d.After(end); d = d.Add(24 * time.Hour) {
		if d.Weekday() != time.Saturday && d.Weekday() != time.Sunday {
			workdays++
		}
	}
	fmt.Printf("%s 到 %s 共 %d 个工作日\n", start.Format("2006-01-02"), end.Format("2006-01-02"), workdays) // 5
}

复制// 计算起始日 +N 个工作日
function addWorkdays(startDate, n) {
  let count = 0;
  let current = new Date(startDate);
  while (count < n) {
    current.setDate(current.getDate() + 1);
    const day = current.getDay(); // 0=周日, 6=周六
    if (day !== 0 && day !== 6) count++;
  }
  return current;
}

const start = new Date('2025-03-01'); // 周六
const result = addWorkdays(start, 3);
console.log(`${start.toISOString().slice(0,10)} + 3 工作日 = ${result.toISOString().slice(0,10)}`); // 2025-03-05

// 计算区间内工作日数（含起止日）
function countWorkdays(startDate, endDate) {
  let workdays = 0;
  const current = new Date(startDate);
  while (current <= endDate) {
    const day = current.getDay();
    if (day !== 0 && day !== 6) workdays++;
    current.setDate(current.getDate() + 1);
  }
  return workdays;
}

const start2 = new Date('2025-03-03'); // 周一
const end2 = new Date('2025-03-07');   // 周五
console.log(`${start2.toISOString().slice(0,10)} 到 ${end2.toISOString().slice(0,10)} 共 ${countWorkdays(start2, end2)} 个工作日`); // 5