清理多余代码，优化

单军华

2018-04-28 1d39caf7235522ae121db7a188ba41a706217407

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<?xml version="1.0"?>
<gpx version="1.1" creator="Peigen, Liu"> 
 
    <wpt lat="39.905206" lon="116.390356">
         <name>Beijing, China</name>
    </wpt>
    
</gpx>