fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> </head> <body> <p id="demo">单击按钮，如果boolean值为<em>true</em>显示“green”,否则显示“red”。</p> <button onclick="myFunction()">点我</button> <script> Boolean.prototype.myColor=function(){ if (this.valueOf()==true){ this.color="green"; } else{ this.color="red"; } } function myFunction(){ var a = new Boolean(1); a.myColor(); var x=document.getElementById("demo"); x.innerHTML=a.color; } </script> </body> </html>
运行结果