nl_tokens: 初始化渲染
pl_tokens: function ( ) { var doc = document . documentElement ; this . el = $ ( tpl ) ; this . el . hide ( ) . css ( { width : doc . clientWidth + 'px' , height : doc . clientHeight + 'px' } ) ; bindTapEvent ( this . el . find ( '.as-cover' ) [ 0 ] , this . hide . bind ( this ) ) ; $ ( 'body' ) . append ( this . <mask> ) ; return this ; }