差额原因默认值

src/views/platform/ticket.vue

@@ -258,7 +258,7 @@ const datesearch = ref('')
 const countForm = ref({
   invoicingId: '',
   actualReceivedAmount: '',
-  settlementPaymentDifference: '',
+  settlementPaymentDifference: '0',
   settlementPaymentReason: '',
   receivePaymentDate: '',
   attachmentIds: [],