[求助]这个DCL文件错在哪里

a2109

刚刚开始学习LISP，这是书上的范例，可我运行时提示出错！！！请帮忙指正

yuan:dialog{
      label="绘制圆";
       :row{
            image{
                 width=30;
                 height=8;
                 key="img_cr"//图像的关键字
                 color=-2;//图像的背景色为AutoCAD的背景色
                  }
               :boxed_column{
                        label="几何数据";
                              edit_box{
                                      label="圆心X(mm)";
                                      edit_width=8;
                                      key="X";
                                      mnemonic="X";
                                       }
                              edit_box{
                                      label="圆心Y(mm)";
                                      edit_width=8;
                                      key="Y";
                                      mnemonic="Y";
                                       }
                                edit_box{
                                      label="半径(mm)";
                                      edit_width=8;
                                      key="R";
                                      mnemonic="R";
                                       }  
                             }
            }
    ok_cancel;
}

a2109

请前辈们多多指导啊！！

caoyin

key="img_cr"//图像的关键字

少个  ;