日期差计算

复制from datetime import date

# 计算两个日期之间的天数差
start = date(2024, 1, 1)
end = date(2024, 12, 31)
delta = end - start
print(f"天数差: {delta.days}")  # 365

# 周数差（向下取整）
weeks = delta.days // 7
print(f"周数差: {weeks}")  # 52

# 月数差（近似，按30天/月）
months = delta.days // 30
print(f"月数差: {months}")  # 12

# 年数差（近似，按365天/年）
years = delta.days // 365
print(f"年数差: {years}")  # 1

复制package main

import (
	"fmt"
	"time"
)

func main() {
	start := time.Date(2024, 1, 1, 0, 0, 0, 0, time.UTC)
	end := time.Date(2024, 12, 31, 0, 0, 0, 0, time.UTC)

	days := int(end.Sub(start).Hours() / 24)
	weeks := days / 7
	months := days / 30
	years := days / 365

	fmt.Printf("天数差: %d\n", days)   // 365
	fmt.Printf("周数差: %d\n", weeks)  // 52
	fmt.Printf("月数差: %d\n", months) // 12
	fmt.Printf("年数差: %d\n", years)  // 1
}

复制// 计算两个日期之间的差值（天/周/月/年）
const start = new Date('2024-01-01');
const end = new Date('2024-12-31');

const msPerDay = 24 * 60 * 60 * 1000;
const days = Math.floor((end - start) / msPerDay);
const weeks = Math.floor(days / 7);
const months = Math.floor(days / 30);
const years = Math.floor(days / 365);

console.log(`天数差: ${days}`);   // 365
console.log(`周数差: ${weeks}`);  // 52
console.log(`月数差: ${months}`); // 12
console.log(`年数差: ${years}`);  // 1