博客园 中 运行js

<script type="text/javascript">
alert("alert弹出？");
</script>

这里放入运行的Html代码。

<p><textarea id="con" style="height: 167px; width: 375px; margin: 2px;">&lt;script type="text/javascript"&gt;
alert("alert弹出？");
&lt;/script&gt;</textarea></p>
<p><input id="btn" onclick="btn();" type="button" value="运行代码" /></p>
<p>&nbsp;</p>
<p><textarea id="theCode" style="width: 450px; height: 300px;" title="双击运行代码" ondblclick="runCode(‘theCode‘);">这里放入运行的Html代码。

</textarea><br />

<input onclick="runCode(‘theCode‘)" type="button" value="运行代码" /> 

<input onclick="doCopy(‘theCode‘)" type="button" value="复制代码" /> 

<input onclick="doSave(‘theCode‘,‘test‘)" type="button" value="保存代码" /></p>
<script type="text/javascript">// <![CDATA[
//执行代码

 var btn = document.getElementById("btn");
    var con = document.getElementById("con");
    if(btn && con){
        btn.onclick = function(){
            var newwin = window.open(‘‘, "_blank", ‘‘);
            newwin.document.open(‘text/html‘, ‘replace‘);
            newwin.opener = null;
            newwin.document.write(con.value);
            newwin.document.close();
        }
    }
    function runCode(obj) {

        var winname = window.open(‘‘, "_blank", ‘‘);

        var content = document.getElementById(obj).value;

        winname.document.open(‘text/html‘, ‘replace‘);

        winname.opener = null

        winname.document.writeln(content);

        winname.document.close();

    }

    //复制代码

    function doCopy(obj){

        var codeObj = document.getElementById(obj);

        clipboardData.setData(‘text‘, codeObj.innerText);

        alert(‘已经复制代码‘);

    }

    // 另存为文件

    function doSave(obj, filename){  

        var win = window.open(‘‘, ‘_blank‘, ‘top=10000‘);

        var code = document.getElementById(obj).innerText;

        win.opener = null;

        win.document.write(code);

        win.document.execCommand(‘saveas‘, true, filename);

        win.close();

    }
// ]]></script>