今天项目遇到了标题所说的问题,找到一篇很高效的例子,值得学习. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>Change.html</title> <meta http-equiv="content-type" content="text/html; charset=
$(document).ready(function(){ $('#swticher-large').click(function(){ var $speech = $('div.speech'); var currectSize = $speech.css('fontSize'); var num = parseFloat(currectSize,10); //parseFloa