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<!DOCTYPE html> <html> <body> <h3>如何访问 SPAN 元素的演示</h3> <p>My mother has <span id="mySpan" style="color:blue;">blue</span> eyes.</p> <p>单击按钮以获取 span 元素的颜色。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("mySpan").style.color; document.getElementById("demo").innerHTML = x; } </script> </body> </html>