要完成此效果把如下代码加入到区域中 <script language=JavaScript> \n<\/script>"; i++; if (i=1) alert("代码已编译1次!"); else alert("代码已编译"+i+"次!"); } function selectCode() /* Selecting "Compilation" for Copying */ { if(document.pad.text.value.length>0) { document.pad.text.focus(); document.pad.text.select(); } else alert('无任何内容被选中!') } function preview() /* Preview for the "Compilation" */ { if(document.pad.text.value.length>0) { pr=window.open("","Preview","scrollbars=1,menubar=1,status=1,width=700,height=320,left=50,top=110"); pr.document.write(document.pad.text.value); } else alert('无任何内容可供预览!') } function uncompile() /* Decompiling a "Compilation" */ { if (document.pad.text.value.length>0) { source=unescape(document.pad.text.value); document.pad.text.value=""+source+""; } else alert('请把需待还原的代码copy到此框中!') } // --> </script>