jQuery 每秒更改 css 颜色
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Changing the css color every second
提问by Ricardo
Possible Duplicate:
How to loop a css background image with Jquery every few seconds?
I'm wondering how to achieve a simple "animation" effect of colors changing every second and if there is a way to animate the animation it can be even better.
我想知道如何实现颜色每秒变化的简单“动画”效果，如果有一种方法可以为动画制作动画效果会更好。
I have just tried something like:
我刚刚尝试过类似的事情：
$('.box').delay(1000).css("background","red");
And it doesn't work at all (the delay function isn't working).. anyways i need like two of them:
它根本不起作用（延迟功能不起作用）。无论如何，我需要其中两个：
$('.box').delay(1000).css("background","red");
$('.box').delay(1000).css("background","green");
So that it becomes red -> wait a second and becomes green -> becomes red again..
所以它变成红色 - >稍等片刻然后变成绿色 - >再次变成红色..
Is it possible? thanks!
是否可以？谢谢！
回答by Damen TheSifter
$(document).ready(function() {
setInterval(function() {
$('body').animate( { backgroundColor: 'red' }, 300)
.animate( { backgroundColor: 'green' }, 300);
}, 1000);
});
回答by danludwig
setInterval(function() {
var box = $('.box');
if (box.css('background-color') == 'red') {
box.css({'background-color':'green'});
}
else {
box.css({'background-color':'red'});
}
}, 1000);
回答by Chris Fulstow
<h1 id="ho">Ho ho ho!</h1>
<h2 id="mc">Merry Christmas!</h2>
<script>
var flag = false;
setInterval(function() {
flag = !flag;
$("#ho").css("background", flag ? "red" : "green");
$("#mc").css("background", flag ? "green" : "red");
}, 1000);
</script>
回答by Leto
I think you have to use the javascript setInterval method :
我认为您必须使用 javascript setInterval 方法：
See here: http://www.w3schools.com/jsref/met_win_setinterval.asp
见这里：http: //www.w3schools.com/jsref/met_win_setinterval.asp
so:
所以：
setInterval(function() {
// Code to execute every second
}, 1000);
