直接放代码了
<script language="javascript">
let mulitImg = [
... //图片路径列表
]
let promiseAll = [],
img = [],
imgTotal = mulitImg.length
for (let i = 0; i < imgTotal; i++) {
promiseAll[i] = new Promise((resolve, reject) => {
img[i] = new Image()
img[i].src = mulitImg[i]
img[i].onload = function() {
console.log(`第${i}张加载完成`)
resolve(img[i])
}
img[i].onerror = function(err) {
//图片出错，设置默认地址
this.src = "默认图片地址"
}
})
}
Promise.all(promiseAll).then((img) => {
console.log(...img, '全部加载完成')
})
</script>
