Javascript 文本动画：越来越大，然后消失
我需要某种可以执行以下操作的 JavaScript：
我需要一些小的绿色文本。然后该文本应该变得越来越大，然后以某种方式消失。这总共大约需要 2-3 秒。我需要在网站的不同位置放置这些文本，这意味着它具有以下要求：
这些文本应该只是视觉的。它 不应干扰用户的操作 可以点击等等
JavaScript 不应该很 对于用户来说加载/使用很重，因为 网站已经很重了
应该可以在 ASP.NET 中实现
我知道这很难描述。我能给出的最好的想法是魔兽世界/其他游戏。每次你射击时，你都会得到一些小数字来描述你击中了多少。这是相同的想法：您在网站上执行一些操作，然后通过该文本动画以图形方式通知用户......
您如何解决这个问题？
事先非常感谢...
I need some kind of JavaScript which can do the following:
I need some small green text. This text should then grow larger and larger and then disappear in some way. This should take around 2-3 seconds in total. I will need several of these texts different places on the website, which means it has the following requirements:
These texts should only be visual. It
should not interfere with what a user
can click upon and suchThe JavaScript shouldn't be very
heavy to load/use for the user, as
the website already is quite heavyShould be implementable in ASP.NET
I do know this is quite hard to describe. The best idea I can give is World of Warcraft / other games. Each time you shoot, you get some small number describing how much you hit. This is the same idea: You do some action on the website, and then the user is informed by this text animation graphically...
How do you come around this?
Thanks so much on beforehand...
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使用 jQuery.animate 可以轻松实现这一点：
http://api.jquery.com/animate/
您可以尝试这样的操作，在 5000 毫秒的时间内将不透明度从 100% 更改为 0%，将 fontSize 从当前更改为 5em：
$('.someDiv').animate({opacity:0,fontSize:'5em' }, 5000);
工作示例在这里： http://jsfiddle.net/Gfca4/
This is easy to achieve with jQuery.animate:
http://api.jquery.com/animate/
You can try something like this, which changes the opacity from 100% to 0% and fontSize from current to 5em over the course of 5000 ms:
$('.someDiv').animate({opacity:0,fontSize:'5em'}, 5000);
Working example is here: http://jsfiddle.net/Gfca4/
如果你能找到的话，Walter Zorn JS Graphics 有一个 JavaScript 图形引擎，它通过使用 1x1 div 创建单个像素来工作。它能够绘制线条、形状和文本。该网站有一个双缓冲动画示例，通过隐藏您正在绘制的 div，然后与可见的交换来提高性能。
Walter Zorn 的网站已关闭
If you can find it Walter Zorn JS Graphics had a javascript graphics engine that worked by creating single pixels using 1x1 divs. It is able to draw lines, shapes, and text. The site had a double buffer animation example by hiding the div you're drawing in then swap with the visible improves performance.
Walter Zorn's website is down