diff --git a/data/package/job/algo.json b/data/package/job/algo.json
index 5a4e0fcfa0b00a67986cf0e40785c03ad20f9398..415b39001194ad08276f4c8a858e4ed0fec8af29 100644
--- a/data/package/job/algo.json
+++ b/data/package/job/algo.json
@@ -21,6 +21,9 @@
         "c",
         "algorithm",
         "python"
+      ],
+      "recommends":[
+
       ]
     },
     {
@@ -34,6 +37,9 @@
       "recommend_skill_trees": [
         "algorithm02",
         "python02"
+      ],
+      "recommends":[
+          
       ],
       "level_id": "pkg-algo-level-0e0f4c2d372c4be6a4954c1e8e29a3bc"
     }
diff --git a/data/package/job/android.json b/data/package/job/android.json
index 6ec890d218a6ce8425fff80e118fa65739aad553..9bd8b5120729c98f114374e9dd3dc3357beb908b 100644
--- a/data/package/job/android.json
+++ b/data/package/job/android.json
@@ -15,7 +15,10 @@
         "android",
         "web"
       ],
-      "recommend_skill_trees": []
+      "recommend_skill_trees": [],
+      "recommends":[
+            
+      ]
     },
     {
       "level": "02",
@@ -26,6 +29,7 @@
         "flutter"
       ],
       "recommend_skill_trees": [],
+      "recommends":[],
       "level_id": "pkg-android-level-fcf0083babaa42209e4ba2d259659361"
     }
   ]
diff --git a/data/package/job/architecture.json b/data/package/job/architecture.json
index 54a3bf872f1a529922380cd6fa00bed080677c25..02f6c617c011b3a74603cb8f2ec068688ab8fc9b 100644
--- a/data/package/job/architecture.json
+++ b/data/package/job/architecture.json
@@ -24,7 +24,8 @@
         "network",
         "pg",
         "cloud_native"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -41,6 +42,7 @@
         "pg",
         "cloud_native"
       ],
+      "recommends":[],
       "level_id": "pkg-archit-level-ce6121fa7a9c4a58aa9852da2bac850f"
     }
   ]
diff --git a/data/package/job/bi.json b/data/package/job/bi.json
index 5fc535327276ea2043d539a91093b1b23a34acf6..3b5b3c6bacc0fffdd0238d7b84ae51ebfd473b7c 100644
--- a/data/package/job/bi.json
+++ b/data/package/job/bi.json
@@ -18,7 +18,8 @@
         "gml",
         "python",
         "pg"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -33,6 +34,7 @@
       "recommend_skill_trees": [
         "pg"
       ],
+      "recommends":[],
       "level_id": "pkg-bi-level-0046fafee14640c7b5aa29cc97b17a8a"
     }
   ]
diff --git a/data/package/job/big_data.json b/data/package/job/big_data.json
index 647497015fa58abe008deae92d4670ec9de4cc31..58c82b7d90747d4b37e42571106802e57fe4e848 100644
--- a/data/package/job/big_data.json
+++ b/data/package/job/big_data.json
@@ -21,7 +21,8 @@
         "gml",
         "python",
         "java"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -35,6 +36,7 @@
       "recommend_skill_trees": [
         "pg"
       ],
+      "recommends":[],
       "level_id": "pkg-bigdata-level-8e2a8fb109424596a667bcc613db93c1"
     }
   ]
diff --git a/data/package/job/cpp.json b/data/package/job/cpp.json
index 5fbffbf13a6a5eaa331fb526e2dc0975471d4654..d24901f726c140f1426642169a6d95d52811de0b 100644
--- a/data/package/job/cpp.json
+++ b/data/package/job/cpp.json
@@ -21,7 +21,8 @@
         "c",
         "algorithm",
         "network"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -35,6 +36,7 @@
         "redis"
       ],
       "recommend_skill_trees": [],
+      "recommends":[],
       "level_id": "pkg-cpp-level-0aef5db1bcca497789fbc1ab8863bd7d"
     }
   ]
diff --git a/data/package/job/crawler.json b/data/package/job/crawler.json
index 2c5b661bdd0325a3daa35845c8d871e86cfaa8a5..267071733bdb2f7bc88332e719eb224afefa6dec 100644
--- a/data/package/job/crawler.json
+++ b/data/package/job/crawler.json
@@ -23,7 +23,8 @@
         "algorithm",
         "python",
         "network"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -38,6 +39,7 @@
         "algorithm02",
         "pg"
       ],
+      "recommends":[],
       "level_id": "pkg-crawler-level-6035cb39f6d14637810beaeb8fecb168"
     }
   ]
diff --git a/data/package/job/devops.json b/data/package/job/devops.json
index edc54a379e2d7d26ec615e19e9ac2e7385f2665b..8652b01f333452d68cbe970b38bbf70f0c637830 100644
--- a/data/package/job/devops.json
+++ b/data/package/job/devops.json
@@ -19,7 +19,8 @@
       "recommend_skill_trees": [
         "gml",
         "network"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -34,6 +35,7 @@
         "pg",
         "k8s"
       ],
+      "recommends":[],
       "level_id": "pkg-devops-level-5c902f5daeb44c96811e791e3bf1a90a"
     }
   ]
diff --git a/data/package/job/go_backend.json b/data/package/job/go_backend.json
index f399c643bd69a7e2ce3889a596e2fe05156c73bb..e6b40a4a8fe4bb12cf0a8005052cfc934ea1f4f8 100644
--- a/data/package/job/go_backend.json
+++ b/data/package/job/go_backend.json
@@ -19,7 +19,8 @@
         "gml",
         "algorithm",
         "network"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -34,6 +35,7 @@
         "c",
         "cloud_native"
       ],
+      "recommends":[],
       "level_id": "pkg-go-level-d2faef92de2042e79f0cb16d3016c10c"
     }
   ]
diff --git a/data/package/job/ios.json b/data/package/job/ios.json
index 8f88ab92351708229c58594ff44e92a1659dda3b..23418f6f65d6e51b4bc4e96c409a85348558ec13 100644
--- a/data/package/job/ios.json
+++ b/data/package/job/ios.json
@@ -15,7 +15,8 @@
       ],
       "recommend_skill_trees": [
         "java"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -28,6 +29,7 @@
       "recommend_skill_trees": [
         "web"
       ],
+      "recommends":[],
       "level_id": "pkg-ios-level-17042027e678450f95732320c7ed023d"
     }
   ]
diff --git a/data/package/job/java_backend.json b/data/package/job/java_backend.json
index 43592e5ce9bb23f97b4a8a70d8a969aa45abe6d2..11e701ea8b087e1382dcbe8d3ec4adfdc5e405aa 100644
--- a/data/package/job/java_backend.json
+++ b/data/package/job/java_backend.json
@@ -24,7 +24,18 @@
       "intro_info": {
         "id": "123924007",
         "username": "CSDNedu"
-      }
+      },
+      "recommends":[
+        {
+            "type": "job",
+            "name": "pythonbf",
+            "level": "01"
+        },
+        {
+            "type": "skill_tree",
+            "name": "gml"
+        }
+      ]
     },
     {
       "level": "02",
@@ -42,7 +53,22 @@
       "intro_info": {
         "id": "123925015",
         "username": "CSDNedu"
-      }
+      },
+      "recommends":[
+        {
+            "type": "job",
+            "name": "pythonbf",
+            "level": "02"
+        },
+        {
+            "type": "skill_tree",
+            "name": "pg"
+        },
+        {
+            "type": "skill_tree",
+            "name": "cloud_native"
+        }
+      ]
     }
   ]
 }
\ No newline at end of file
diff --git a/data/package/job/machine_vision.json b/data/package/job/machine_vision.json
index 07a93d14442aaac3968aff259dec2ed792669755..fbaf38408f33b960f62a8539bc6822c113b43528 100644
--- a/data/package/job/machine_vision.json
+++ b/data/package/job/machine_vision.json
@@ -22,7 +22,8 @@
         "c",
         "python",
         "opencv"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -36,6 +37,7 @@
         "python02",
         "neo4j"
       ],
+      "recommends":[],
       "level_id": "pkg-machinevision-level-bbcc2444f218474aa445df6ca08c5cfb"
     }
   ]
diff --git a/data/package/job/nlp.json b/data/package/job/nlp.json
index 287c1be911fc55b97927bb9b9e533b1c3d40fc96..a43dbb08b6ec897f53173f1ce9f36ed5d0b5b68e 100644
--- a/data/package/job/nlp.json
+++ b/data/package/job/nlp.json
@@ -15,7 +15,8 @@
         "python",
         "python02"
       ],
-      "recommend_skill_trees": []
+      "recommend_skill_trees": [],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -34,6 +35,7 @@
         "neo4j",
         "pg"
       ],
+      "recommends":[],
       "level_id": "pkg-nlp-level-4f5c84c95f26440393a69a4181d03a65"
     }
   ]
diff --git a/data/package/job/operations.json b/data/package/job/operations.json
index 852513354ebb198493e84624e33ef8d3052ac066..20f2ab9faa74a379af4eb693c99927c4e842f901 100644
--- a/data/package/job/operations.json
+++ b/data/package/job/operations.json
@@ -12,7 +12,8 @@
       "skill_trees": [
         "operations"
       ],
-      "recommend_skill_trees": []
+      "recommend_skill_trees": [],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -21,6 +22,7 @@
         "product"
       ],
       "recommend_skill_trees": [],
+      "recommends":[],
       "level_id": "pkg-operations-level-cb6f3cce44a941cabdbaea37b6521822"
     }
   ]
diff --git a/data/package/job/php.json b/data/package/job/php.json
index 6d1d6edc06ce4d7ded7c697f6a4e80168435cf22..f183184bdef67afea8d4b2daf20240b53d12830c 100644
--- a/data/package/job/php.json
+++ b/data/package/job/php.json
@@ -18,7 +18,8 @@
       "recommend_skill_trees": [
         "gml",
         "pg"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -34,6 +35,7 @@
         "java",
         "pg"
       ],
+      "recommends":[],
       "level_id": "pkg-php-level-3a99b53332c9429b8f32669e74ab9f35"
     }
   ]
diff --git a/data/package/job/product.json b/data/package/job/product.json
index d1f3bff4168ff064c07898502edded1bd40740d5..97be65641032b4f8c5e45366e5b2f8bb195249c1 100644
--- a/data/package/job/product.json
+++ b/data/package/job/product.json
@@ -14,7 +14,8 @@
       ],
       "recommend_skill_trees": [
         "se"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -25,6 +26,7 @@
       "recommend_skill_trees": [
         "se02"
       ],
+      "recommends":[],
       "level_id": "pkg-product-level-995424592df44bc99c88233f341bde94"
     }
   ]
diff --git a/data/package/job/python_backend.json b/data/package/job/python_backend.json
index 9a765f75f7b083974e214b951787201464624e86..da9c74e1f91267745ff3b00f0f0f1f4ca7920ccb 100644
--- a/data/package/job/python_backend.json
+++ b/data/package/job/python_backend.json
@@ -19,11 +19,22 @@
         "python",
         "pg"
       ],
-      "level_id": "pkg-pythonbf-level-db97b83b1c964b95ab28e36f7178fe9b",
       "intro_info": {
         "id": "123923401",
         "username": "CSDNedu"
-      }
+      },
+      "recommends":[
+          {
+              "type": "job",
+              "name": "javabf",
+              "level": "01"
+          },
+          {
+              "type": "skill_tree",
+              "name": "gml"
+          }
+      ],
+      "level_id": "pkg-pythonbf-level-db97b83b1c964b95ab28e36f7178fe9b"
     },
     {
       "level": "02",
@@ -36,11 +47,26 @@
         "python02",
         "network"
       ],
-      "level_id": "pkg-pythonbf-level-6c049ab37db04088b4fac28dfddf1203",
       "intro_info": {
         "id": "123924820",
         "username": "CSDNedu"
-      }
+      },
+      "recommends":[
+        {
+            "type": "job",
+            "name": "javabf",
+            "level": "02"
+        },
+        {
+            "type": "skill_tree",
+            "name": "pg"
+        },
+        {
+            "type": "skill_tree",
+            "name": "cloud_native"
+        }
+      ],
+      "level_id": "pkg-pythonbf-level-6c049ab37db04088b4fac28dfddf1203"
     }
   ],
   "package_id": "pkg-pythonbf-dfceceb7e1bb43d2a480cbafa14c6cf6"
diff --git a/data/package/job/search.json b/data/package/job/search.json
index 64a4cda8d1725d58467b74b75150c9aa6b443ee0..3549d549f808687f131d8f066be97d0cb93218fd 100644
--- a/data/package/job/search.json
+++ b/data/package/job/search.json
@@ -22,7 +22,8 @@
         "algorithm",
         "java",
         "python"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -37,6 +38,7 @@
         "python02",
         "pg"
       ],
+      "recommends":[],
       "level_id": "pkg-search-level-e3ddce54bc304fc290a76a437fd4791c"
     }
   ]
diff --git a/data/package/job/test.json b/data/package/job/test.json
index 9f8e0c70d1d761a8656732d3a1f029e5f07763ba..f97583a9366f38594c3620960f5c3577688d8a65 100644
--- a/data/package/job/test.json
+++ b/data/package/job/test.json
@@ -17,7 +17,8 @@
       "recommend_skill_trees": [
         "gml",
         "python"
-      ]
+      ],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -30,6 +31,7 @@
       "recommend_skill_trees": [
         "pg"
       ],
+      "recommends":[],
       "level_id": "pkg-test-level-85e8c4269c4f4e23b6012ebc8d31e05f"
     }
   ]
diff --git a/data/package/job/web.json b/data/package/job/web.json
index 64c968c43fb97ddda11290f876efe9561ad5fe18..b0a51cc517aef81cbd62653fd497c0ea709e5e43 100644
--- a/data/package/job/web.json
+++ b/data/package/job/web.json
@@ -14,7 +14,8 @@
         "vue",
         "network"
       ],
-      "recommend_skill_trees": []
+      "recommend_skill_trees": [],
+      "recommends":[]
     },
     {
       "level": "02",
@@ -25,6 +26,7 @@
         "flutter"
       ],
       "recommend_skill_trees": [],
+      "recommends":[],
       "level_id": "pkg-web-level-7d906e7132dd43438cd70216f697999e"
     }
   ]