在这种情况下,元素隐藏在1.无法理解为什么它最初没有显示“P”标签然后慢慢隐藏它.请帮我解决问题.
var step = 0.1;
var delay = 90000;
var displayMe = function() {
if (element.style.opacity < 1) {
element.style.opacity += step;
setTimeout('displayMe()', delay);
}
}
var hideMe = function() {
var elem = document.getElementById('regform');
if (elem.style.opacity >= 0) {
elem.style.opacity -= step;
setTimeout('hideMe ()', delay);
}
}
hideMe();
<p id="regform">aaaaaaaaaaaaaaaaa</p>
最佳答案 Element.style.prop将只读取内联样式.为< p>定义style =’opacity:1’元件.
var step = 0.1;
var delay = 1000;
var displayMe = function() {
if (element.style.opacity < 1) {
element.style.opacity += step;
setTimeout(displayMe, delay);
}
}
var hideMe = function() {
var elem = document.getElementById('regform');
if (elem.style.opacity >= 0) {
elem.style.opacity -= step;
setTimeout(hideMe, delay);
}
}
hideMe();
<p id="regform" style='opacity:1'>aaaaaaaaaaaaaaaaa</p>