From: http://plplum.blog.163.com/blog/static/310324002009814105634/
windows下的等宽字体：
BatangChe Courier Courier New DotumChe Fixedsys GulimChe GungsuhChe Lucida Console Lucida Sans Typewriter MingLiU MS Gothic MS Mincho Terminal 仿宋_GB2312 楷体_GB2312 隶书 宋体-方正超大字符集 新宋体 幼圆