BootWiki教程网
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>BootWiki 教程网</title> <script> function displayResult(){ var x=document.getElementById("myCheck").defaultChecked; alert(x); } </script> </head> <body> <form> <input checked="checked" id="myCheck" type="checkbox">你喜欢夏天吗? </form> <button onclick="displayResult()" type="button">选中了默认的选择框吗?</button> </body> </html>
运行结果