点击运行
<!DOCTYPE html> <html> <body> <img src="/zy/i/eg_planets.gif" width="145" height="126" usemap="#planetmap" /> <map name="planetmap"> <area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="/zy/example/hdom/venus.html?id=venus" /> </map> <p>单击按钮以显示“venus”区域的 href 属性的查询字符串部分。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("venus").search; document.getElementById("demo").innerHTML = x; } </script> </body> </html>
运行结果
