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