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<!DOCTYPE html> <html> <body> <p>单击按钮获取测试 div 的所有计算样式。</p> <p><button onclick="myFunction()">试一试</button></p> <div id="test" style="height: 50px;background-color: lightblue;">Test Div</div> <p>测试 div 的计算样式为：<br><span id="demo"></span></p> <script> function myFunction(){ var elem = document.getElementById("test"); var txt = ""; cssObj = window.getComputedStyle(elem, null) for (i = 0; i < cssObj.length; i++) { cssObjProp = cssObj.item(i) txt += cssObjProp + " = " + cssObj.getPropertyValue(cssObjProp) + "<br>"; } document.getElementById("demo").innerHTML = txt; } </script> </body> </html>