Javascript照片幻灯片代码
这段代码来自W3schools,用于照片幻灯片,我只是想知道每一行的含义和作用。多谢各位Javascript照片幻灯片代码,javascript,html,webpage,Javascript,Html,Webpage,这段代码来自W3schools,用于照片幻灯片,我只是想知道每一行的含义和作用。多谢各位 <script> var slideIndex = 1; showSlides(slideIndex); function plusSlides(n) { showSlides(slideIndex += n); } function currentSlide(n) { showSlides(slideIndex = n); } function showSlides(n) { var i
<script>
var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slides[slideIndex-1].style.display = "block";
}
</script>
var slideIndex=1;
放映幻灯片(幻灯片索引);
函数加滑块(n){
放映幻灯片(幻灯片索引+=n);
}
功能当前幻灯片(n){
放映幻灯片(幻灯片索引=n);
}
功能演示幻灯片(n){
var i;
var slides=document.getElementsByClassName(“mySlides”);
如果(n>slides.length){slideIndex=1}
如果(n<1){slideIndex=slides.length}
对于(i=0;i