s

client/components/dialog/prize-dialog/prize-dialog.axml

@@ -9,6 +9,7 @@
       <view class="probability-prize-content-form"> 
         <form inline="true">
             <form-item
+              a:if="{{type !== 'rank'}}"
               style="width:100%" 
               size="large"
               class="probability-prize-content-formItem" 
@@ -165,7 +166,7 @@
             </form-item>
 
           <form-item
-            a:if="{{type==='probability'}}"
+            a:if="{{type==='probability' && !prizeInitData.isBackUp}}"
             style="width:100%"
             size="large"
             class="probability-prize-content-formItem"

client/components/dialog/prize-dialog/prize-dialog.js

@@ -380,7 +380,7 @@ Component({
       const { imageTips } = this.data;
       const { type: dialogType, maxRankLimit } = this.props;
 
-      if (dialogType == "probability") {
+      if (dialogType == "probability" && isBackUp) {
         let probabilityRexp = /^\d+(\.\d{1,2})?$/;
         if (
           !probabilityRexp.test(probability) ||

client/utils/validate.js

@@ -34,7 +34,7 @@ export const validateRangeNumber = (number, [min, max] = [], fixed = 0) => {
     console.error('数字范围的最小值不能大于最大值');
     return;
   }
-  if(number != 0){
+  if (number != 0) {
     if (!pattern.test(number) || number === '') return false;
   }
 
@@ -49,13 +49,17 @@ export const rateTableValidator = (rule, value, callback, source, options) => {
   if (!value.length || !value) {
     return new Error('请至少配置一个奖品');
   }
-  if(value.length){
-    value.forEach(item=>{
+  if (value.length) {
+    value.forEach(item => {
       n += Number(item.probability)
     })
   }
-  if(n>100){
-     return new Error('总概率不能大于100%');
+  const backUp = value.filter(item => item.backUp);
+  if (backUp.length > 1) {
+    return new Error('降级奖品最多配置一个');
+  }
+  if (n > 100) {
+    return new Error('总概率不能大于100%');
   }
   return callback()
 };