In addition, although the data sets generated by the interaction between different applications and data subjects are different, under the expected payment conditions, that is, when the corresponding data controllers directly issue the voucher to users, different merchants often only need to pay attention to a fixed format data set and the fixed source from which it originates. After the relatively perfect data set Q ﹤ V calculation model is established for the first time , the subsequent processing and calculation are often not too complex.<br>
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