創建一個文本框,在一個文本框中,讓用戶輸入他的出生月份,第二個文本框中輸入月份中的日期,編寫一個JavaScript程序,在第三個文本框中打印距離用戶生日還有多少天。
<div id="box"><label for="">請輸入您的出生月份:</label> <input type="text"><label for="">請輸入您的出生日期:</label> <input type="text"><button>確定</button><label for="">距離您的生日還有:</label> <input type="text"></div><script>var btn = document.querySelector('button');console.log(btn);btn.onclick = function () {var time1 = new Date();var year = time1.getFullYear();console.log(year);var ins = document.querySelectorAll('input');console.log(ins);var m2 = ins[0].value;var d2 = ins[1].value;console.log(m2, d2);var time2 = new Date(`${year}/${m2}/${d2} 12:00:00`);console.log(time2);var time3 = time2.getTime() - time1.getTime();console.log(time3);if (time3 < 0) {year = year + 1;console.log(year);var time2 = new Date(`${year}/${m2}/${d2} 12:00:00`);var time3 = time2.getTime() - time1.getTime();}console.log(time3);var days = Math.floor(time3 / (1000 * 60 * 60 * 24));console.log(days);ins[2].value = days;}</script>