[提問交流]下面這段程式碼中沒帶註釋的那3行是什麼意思呢？謝謝！！！

 <script type="text/javascript">
            (function() {
                var ThinkPHP = window.Think = {
                    "ROOT": "", //當前網站地址
                    "APP": "", //當前專案地址
                    "PUBLIC": "/Public", //專案公共目錄地址
                    "DEEP": "/", //PATHINFO分割符
                    "MODEL": ["2", "1", "html"],
                    "VAR": ["m", "c", "a"],
                    "COOKIE_PREFIX": "onethink_home_"
                }
            })();
        </script>