年份 2021 2020 月份 1 2 日期 1 2
select { width: 100px; padding: 5px; border: 1px solid #ccc; background-color: #fff; color: #666; font-size: 16px; font-family: Arial,sans-serif; border-radius: 3px; outline: none; }
window.onload = function() { let year = document.getElementById('year'); let month = document.getElementById('month'); let day = document.getElementById('day'); for (let i = 1; i = 1900; i--) { let option = document.createElement('option'); option.value = i; option.text = i; year.appendChild(option); } }