<!DOCTYPE html><html><head> <meta charset="utf-8"> <title></title> <script src="js/ ...
<!DOCTYPE html><html><head> <meta charset="utf-8"> <title></title> <script src='/images/loading.gif' data-original="js/knockout-3.4.0.js" type="text/javascript" charset="utf-8"></script> <style type="text/css" media="screen"> .profitWarning{font-size:20px;color:#f00;} </style></head><body><div data-bind="css: { profitWarning: currentProfit() < 0 }"> Profit Information</div> <script type="text/javascript"> var viewModel = { currentProfit: ko.observable(150000) }; ko.applyBindings(viewModel); setTimeout(function(){ viewModel.currentProfit(-50); },2000)</script> </body></html>
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原标题:knockout 学习实例4 css
关键词:CSS
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