diff --git a/srcs/open_dhcp/query.cpp b/srcs/open_dhcp/query.cpp
index 43a3e09..c79a02a 100644
--- a/srcs/open_dhcp/query.cpp
+++ b/srcs/open_dhcp/query.cpp
@@ -448,6 +448,7 @@ static int delete_dhcpd_rangeset(data19 *req, const char *pRequest) {
     cJSON_AddItemToObject(pRspRoot, "rangeSet", pdelArray);
 
     for (int i = 0; i < cJSON_GetArraySize(pdhcp_range); i++) {
+        cJSON *pdel_Item = cJSON_CreateObject();
         cJSON *pdelRange = cJSON_GetArrayItem(pdhcp_range, i);
         char   del_range[256];
         auto  *delItem = (struct hash_map *)malloc(sizeof(hash_map));
@@ -465,6 +466,13 @@ static int delete_dhcpd_rangeset(data19 *req, const char *pRequest) {
         mySplit(start, end, del_range, '-');
         st_addr = htonl(inet_addr(start));
         en_addr = htonl(inet_addr(end));
+        if(en_addr == 0) {
+            cJSON_AddStringToObject(pdel_Item, "dhcpRange", del_range);
+
+            cJSON_AddNumberToObject(pdel_Item, "status", ERR_INPUT_PARAMS);
+            cJSON_AddStringToObject(pdel_Item, "message", getErrorEnumDesc(ERR_INPUT_PARAMS));
+            cJSON_AddItemToArray(pdelArray, pdel_Item);
+        }
 
         HASH_FIND_INT(delMap, &st_addr, delItem);
         if (delItem == nullptr) {
@@ -491,11 +499,10 @@ static int delete_dhcpd_rangeset(data19 *req, const char *pRequest) {
             sprintf(del_range, "%s-%s", saddr, eaddr);
             cJSON_AddStringToObject(pdel_Item, "dhcpRange", del_range);
             //judge whether the input has error
-            if (delRange->key && delRange->value && (delRange->key == cfig.dhcpRanges[i].rangeStart) &&
-                (delRange->value == cfig.dhcpRanges[i].rangeEnd)) {
-                cJSON_AddNumberToObject(pdel_Item, "status", ERR_SUCCESS);
-                cJSON_AddStringToObject(pdel_Item, "message", getErrorEnumDesc(ERR_SUCCESS));
-                cJSON_AddItemToArray(pdelArray, pdel_Item);
+            if(delRange->value == cfig.dhcpRanges[i].rangeEnd) {
+                    cJSON_AddNumberToObject(pdel_Item, "status", ERR_SUCCESS);
+                    cJSON_AddStringToObject(pdel_Item, "message", getErrorEnumDesc(ERR_SUCCESS));
+                    cJSON_AddItemToArray(pdelArray, pdel_Item);
 
             } else {
                 memcpy(&dhcpRanges[resCount], &cfig.dhcpRanges[i], sizeof(struct data13));
@@ -504,6 +511,8 @@ static int delete_dhcpd_rangeset(data19 *req, const char *pRequest) {
                 cJSON_AddStringToObject(pdel_Item, "message", getErrorEnumDesc(ERR_INPUT_PARAMS));
                 cJSON_AddItemToArray(pdelArray, pdel_Item);
             }
+
+            HASH_DEL(delMap, delRange);
         } else {
             //write to dhcpRanges
             memcpy(&dhcpRanges[resCount], &cfig.dhcpRanges[i], sizeof(struct data13));
@@ -511,6 +520,29 @@ static int delete_dhcpd_rangeset(data19 *req, const char *pRequest) {
         }
     }
 
+    //输入参数不存在的情况
+    if(resCount > cfig.rangeCount - cJSON_GetArraySize(pdhcp_range)){
+        cJSON    *pdel_Item = cJSON_CreateObject();
+        hash_map *s = (struct hash_map*)malloc(sizeof(struct hash_map));
+        hash_map *tmp;
+        char      saddr[128];
+        char      eaddr[128];
+        char      del_range[256];
+        memset(del_range, 0, 256);
+
+        HASH_ITER(hh, delMap, s, tmp){
+            IP2String(saddr, ntohl(s->key));
+            IP2String(eaddr, ntohl(s->value));
+
+            sprintf(del_range, "%s-%s", saddr, eaddr);
+            cJSON_AddStringToObject(pdel_Item, "dhcpRange", del_range);
+
+            cJSON_AddNumberToObject(pdel_Item, "status", ERR_ITEM_UNEXISTS);
+            cJSON_AddStringToObject(pdel_Item, "message", getErrorEnumDesc(ERR_ITEM_UNEXISTS));
+            cJSON_AddItemToArray(pdelArray, pdel_Item);
+        }
+    }
+
     //rewite cfig.dhcpRanges
     for (int i = 0; i < cfig.rangeCount; i++) {
         if (i < resCount) {