关于ckeditor的只读问题

Question

var editor = CreateEditor();
function CreateEditor(){
  var editor = CKEDITOR.replace("editor1"); //其中editor1为textarea的id
  return editor;
}
editor.setReadOnly(true); //设置只读

Answer 1

//转化编辑器
            editor = CKEDITOR.replace('CONTENT');
            CKEDITOR.on('instanceReady', function (ev) {
                editor = ev.editor;
                editor.setReadOnly(true); 
            });

Answer 2

这个代码是写在哪儿的呢html的<script></script>中呢，还是js中