题解 | #购物面板#
购物面板
https://www.nowcoder.com/practice/1448469386f746f5941db2712372f373
let zhaji = 0; let kele = 0; let zongjia; var zhajiJian = document.getElementById('zjtaiduola'); var zhajiJia = document.getElementById('zjtaishaola'); var keleJian = document.getElementById('kltaiduola'); var keleJia = document.getElementById('kltaishaola'); var zjsl = document.getElementById('zjsl'); var klsl = document.getElementById('klsl'); var total = document.getElementById('total'); zhajiJian.onclick = function () { if (zhaji > 0) { zhaji--; zongjia = (zhaji * 28) + (kele * 5); zjsl.innerText = zhaji; total.innerText = zongjia; } } zhajiJia.onclick = function () { zhaji++; zongjia = (zhaji * 28) + (kele * 5); zjsl.innerText = zhaji; total.innerText = zongjia; } keleJian.onclick = function() { if (kele > 0) { kele--; zongjia = (zhaji * 28) + (kele * 5); klsl.innerText = kele; total.innerText = zongjia; } } keleJia.onclick = function () { kele++; zongjia = (zhaji * 28) + (kele * 5); klsl.innerText = kele; total.innerText = zongjia; }