public LinkedHashMap xmlFieldMap(Class<?> cls){
LinkedHashMap xmlBuilderMap = new LinkedHashMap();
for (Class<?> precls = this.getClass(); cls.isAssignableFrom(precls) && !cls.equals(precls); precls = precls.getSuperclass()) {
xmlBuilderMap.putAll(claFields2Map(precls));
}
return xmlBuilderMap;
}
看不懂这个for