例子

 window.editor_two = CodeMirror.fromTextArea(document.getElementById("config"), {
                            lineNumbers: true,
                            matchBrackets: true,
                            styleActiveLine: true
                        });

 var d = {'config': editor_two.getValue() };

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新闻名称：解决启用codemirror后，jquery获取不到textarea的值
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