feats\

src/pages/index/helpToFindHouse/index.jsx

     let areaResultId;
     data.map((item) => {
       if (item.key === 'budget') {
-        params.push({ ...item, key: 'minPrice', result: CurrentDemandId === 2 ? item.options[0] : item.options[0] * 10000 })
-        params.push({ ...item, key: 'maxPrice', result: CurrentDemandId === 2 ? (item.result === '' ? 1000 : item.result) : (item.result === '' ? 10000000 : item.result * 10000) })
+        // 用户选择 200, 则区间为 [100, 300]
+        // 用户选择 300, 则区间为 [200, 400]
+        const price = item.result === '' ? 300 : item.result - 0;
+        const min = price < 100 ? 100 : price - 100;
+        const max = price + 100;
+
+        params.push({ ...item, key: 'minPrice', result: CurrentDemandId === 2 ? min : min * 10000 })
+        params.push({ ...item, key: 'maxPrice', result: CurrentDemandId === 2 ? max : max * 10000 })
       } else {
         if (CurrentDemandId === 1) {
           if (item.key === 'area') {