{
const side1 = doc.querySelectorAll('.side1-id');
const side2 = doc.querySelectorAll('.side2-id');
const side3 = doc.querySelectorAll('.side3-id');
const side4 = doc.querySelectorAll('.side4-id');
const bigImgItem = doc.querySelectorAll('.main-3-item');
const imgText = doc.querySelectorAll('.img-text');
const iconBox = doc.querySelectorAll('.text-icon-box');
const none = 'content-none';
const anim = 'cb-anim';
const animScaleSpring = 'cb-anim-scaleSpring'
let currentIndex = 0;
const arr = [
[side1[0], side1[1]],
[side2[0], side2[1]],
[side3[0], side3[1]],
[side4[0], side4[1]]
]
let currentZIndexArr = ['z-index1', 'z-index2', 'z-index3', 'z-index4'];
let newZIndexArr = [];
function gec(select,index, fn){
select.onmouseenter = function(){
fn(index)
}
}
function replaceZindex(currentZIndexArr, newZIndexArr){
for(let i = 0; i < 4; ++i){
bigImgItem[i].classList.replace(currentZIndexArr[i], newZIndexArr[i]);
}
}
function change(index){
let valueArr = [];
imgText[currentIndex].classList.remove(anim, animScaleSpring);
imgText[currentIndex].classList.add(none);
iconBox[currentIndex].classList.add(none);
valueArr = arr[currentIndex];
for(let i = 0; i < 2; ++i){
valueArr[i].classList.remove(none)
}
currentIndex = index; //当前展示的图片索引
valueArr = arr[currentIndex];
console.log(valueArr)
for(let i = 0; i < 2; ++i){
valueArr[i].classList.add(none)
}
switch(index){
case 0:
newZIndexArr = ['z-index1', 'z-index2', 'z-index3', 'z-index4'];
replaceZindex(currentZIndexArr,newZIndexArr)
currentZIndexArr = newZIndexArr;
break;
case 1:
newZIndexArr = ['z-index2', 'z-index1', 'z-index3', 'z-index4'];
replaceZindex(currentZIndexArr,newZIndexArr)
currentZIndexArr = newZIndexArr;
break;
case 2:
newZIndexArr = ['z-index3', 'z-index2', 'z-index1', 'z-index4'];
replaceZindex(currentZIndexArr,newZIndexArr)
currentZIndexArr = newZIndexArr;
break;
case 3:
newZIndexArr = ['z-index4', 'z-index3', 'z-index2', 'z-index1'];
replaceZindex(currentZIndexArr,newZIndexArr)
currentZIndexArr = newZIndexArr;
break;
}
imgText[currentIndex].classList.remove(none);
iconBox[currentIndex].classList.remove(none);
imgText[currentIndex].classList.add(anim, animScaleSpring);
}
gec(side1[0],0, change)
gec(side1[1],0, change)
gec(side2[0],1, change)
gec(side2[1],1, change)
gec(side3[0],2, change)
gec(side3[1],2, change)
gec(side4[0],3, change)
gec(side4[1],3, change)
//根据窗口大小改变高度
changeHeight()
function changeHeight(){
const imgItemBox = doc.querySelector('.img-item-box')
const imgItemBoxHeight = bigImgItem[0].offsetHeight + 1;
imgItemBox.style.cssText += `; height: ${imgItemBoxHeight + 'px'};`;
}
window.onresize = function(){
changeHeight()
}
}
![](https://profile-avatar.csdnimg.cn/8bb00c8b88394d78b8945a2e52e2243b_m0_58260590.jpg!4)
js部分代码,不明白
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2条回答 默认 最新
- 你好!机器人 2021-12-19 19:56关注
doc.querySelectorAll获得属性,可以看w3c
https://www.w3school.com.cn/js/js_switch.asp本回答被题主选为最佳回答 , 对您是否有帮助呢?解决 无用评论 打赏 举报
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