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var traceTarget:TraceTarget = new TraceTarget();
traceTarget.filters = ['spark.components.*','myPackage.MyClass']; //´´½¨¹ýÂËÆ÷£¬¿ÉÒÔÖ±½ÓÓÃclassÃû£¬Ò²¿ÉÒÔʹÓÃ*Àà¹ýÂËÕû¸ö°ü
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traceTarget.includeCategory = true; //Êä³öÐÅÏ¢ÊÇ·ñ°üº¬classÃû
traceTarget.level = LogEventLevel.INFO; //É趨Êä³öµÄµÈ¼¶ 
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info.info(‘trace log massege’); //Êä³öÖ¸¶¨µÈ¼¶µÄlogÐÅÏ¢
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