fix: bug

src/components/business/CreateRefundDialog.vue

@@ -105,7 +105,7 @@
   })
 
   const validateRefundAmount = (rule: any, value: number, callback: any) => {
-    if (value === undefined || value === null || value === 0) {
+    if (value === undefined || value === null) {
       callback(new Error('请输入申请退款金额'))
     } else if (value > formData.actual_received_amount) {
       callback(new Error('申请退款金额不能大于实收金额'))