diff --git a/.CHANGELOG.md b/.CHANGELOG.md
new file mode 100644
index 00000000..78df33e9
--- /dev/null
+++ b/.CHANGELOG.md
@@ -0,0 +1 @@
+# 开发中
\ No newline at end of file
diff --git a/.deepsource.toml b/.deepsource.toml
new file mode 100644
index 00000000..28d321eb
--- /dev/null
+++ b/.deepsource.toml
@@ -0,0 +1,32 @@
+# Copyright 2021 gotomicro
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+version = 1
+
+[[analyzers]]
+name = "go"
+enabled = true
+
+  [analyzers.meta]
+  import_root = "github.com/gotomicro/ego-kit"
+  dependencies_vendored = false
+
+[[analyzers]]
+name = "test-coverage"
+enabled = true
+
+[[analyzers]]
+name = "sql"
+enabled = true
+
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 00000000..369e6c96
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,34 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**仅限中文**
+
+在提之前请先查找[已有 issues](https://github.com/gotomicro/eorm/issues)，避免重复上报。
+
+并且确保自己已经：
+- [ ] 阅读过文档
+- [ ] 阅读过注释
+- [ ] 阅读过例子
+
+### 问题简要描述
+
+### 复现步骤
+> 请提供简单的复现代码
+
+### 错误日志或者截图
+
+### 你期望的结果
+
+### 你排查的结果，或者你觉得可行的修复方案
+> 可选。我们希望你能够尽量先排查问题，帮助我们减轻维护负担。这对于你个人能力提升同样是有帮助的。
+
+### 你使用的是 ego-kit 哪个版本?
+
+### 你设置的的 Go 环境?
+> 上传 `go env` 的结果
\ No newline at end of file
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
new file mode 100644
index 00000000..51b95bda
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,26 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: feature
+assignees: ''
+
+---
+
+**仅限中文**
+
+### 使用场景
+
+### 行业分析
+> 如果你知道有框架提供了类似功能，可以在这里描述，并且给出文档或者例子
+
+### 可行方案
+> 如果你有设计思路或者解决方案，请在这里提供。你可以提供多个方案，并且给出自己的选择
+
+### 其它
+> 任何你觉得有利于解决问题的补充说明
+
+### 你使用的是 ego-kit 哪个版本?
+
+### 你设置的的 Go 环境?
+> 上传 `go env` 的结果
diff --git a/.github/ISSUE_TEMPLATE/question.md b/.github/ISSUE_TEMPLATE/question.md
new file mode 100644
index 00000000..b91e17c7
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/question.md
@@ -0,0 +1,22 @@
+---
+name: Question
+about: Want to ask some questions
+title: ''
+labels: question
+---
+
+**仅限中文**
+
+在提之前请先查找[已有 issues](https://github.com/gotomicro/eorm/issues)，避免重复上报。
+
+并且确保自己已经：
+- [ ] 阅读过文档
+- [ ] 阅读过注释
+- [ ] 阅读过例子
+
+### 你的问题
+
+### 你使用的是 ego-kit 哪个版本?
+
+### 你设置的的 Go 环境?
+> 上传 `go env` 的结果
diff --git a/.github/linters/.golangci.yml b/.github/linters/.golangci.yml
new file mode 100644
index 00000000..513d535a
--- /dev/null
+++ b/.github/linters/.golangci.yml
@@ -0,0 +1,58 @@
+# Copyright 2021 gotomicro
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+run:
+  timeout: 5m
+  skip-files:
+    - generated.*
+    - gen.*
+
+issues:
+  new: true
+
+linters:
+  enable:
+    - asciicheck
+    - bodyclose
+    - deadcode
+    - depguard
+    - gci
+    - gocritic
+    - gofmt
+    - gofumpt
+    - goimports
+    - goprintffuncname
+    - gosimple
+    - govet
+    - ineffassign
+    - misspell
+    - nilerr
+    - rowserrcheck
+    - staticcheck
+    - structcheck
+    - stylecheck
+    - typecheck
+    - unconvert
+    - unused
+    - unparam
+    - varcheck
+    - whitespace
+    - errcheck
+#  disable:
+
+linters-settings:
+  gci:
+    local-prefixes: github.com/gotomicro/ego-kit
+  goimports:
+    local-prefixes: github.com/gotomicro/ego-kit
diff --git a/.github/pre-push b/.github/pre-push
new file mode 100644
index 00000000..5b8673f1
--- /dev/null
+++ b/.github/pre-push
@@ -0,0 +1,50 @@
+#!/bin/sh
+# Copyright 2021 gotomicro
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# git test pre-push hook
+#
+# To use, store as .git/hooks/pre-push inside your repository and make sure
+# it has execute permissions.
+#
+# This script does not handle file names that contain spaces.
+
+# Pre-push configuration
+remote=$1
+url=$2
+echo >&2 "Try pushing $2 to $1"
+
+TEST="go test ./... -race -cover -failfast"
+LINTER="golangci-lint run"
+
+# Run test and return if failed
+printf "Running go test..."
+$TEST
+RESULT=$?
+if [ $RESULT -ne 0 ]; then
+  echo >&2 "$TEST"
+  echo >&2 "Check code to pass test."
+  exit 1
+fi
+
+# Run linter and return if failed
+printf "Running go linter..."
+$LINTER
+RESULT=$?
+if [ $RESULT -ne 0 ]; then
+  echo >&2 "$LINTER"
+  echo >&2 "Check code to pass linter."
+  exit 1
+fi
+
+exit 0
\ No newline at end of file
diff --git a/.github/workflows/changelog.yml b/.github/workflows/changelog.yml
new file mode 100644
index 00000000..0a8130cb
--- /dev/null
+++ b/.github/workflows/changelog.yml
@@ -0,0 +1,45 @@
+# Copyright 2021 gotomicro
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: changelog
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, labeled, unlabeled]
+    branches:
+      - develop
+      - main
+
+jobs:
+  changelog:
+    runs-on: ubuntu-latest
+    if: "!contains(github.event.pull_request.labels.*.name, 'Skip Changelog')"
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check for CHANGELOG changes
+        run: |
+          # Only the latest commit of the feature branch is available
+          # automatically. To diff with the base branch, we need to
+          # fetch that too (and we only need its latest commit).
+          git fetch origin ${{ github.base_ref }} --depth=1
+          if [[ $(git diff --name-only FETCH_HEAD | grep CHANGELOG) ]]
+          then
+            echo "A CHANGELOG was modified. Looks good!"
+          else
+            echo "No CHANGELOG was modified."
+            echo "Please add a CHANGELOG entry, or add the \"Skip Changelog\" label if not required."
+            false
+          fi
\ No newline at end of file
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
new file mode 100644
index 00000000..572814dc
--- /dev/null
+++ b/.github/workflows/go.yml
@@ -0,0 +1,40 @@
+# Copyright 2021 gotomicro
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Go
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.18
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Test
+        run: go test -race -coverprofile=cover.out -v ./...
+
+      - name: Post Coverage
+        uses: codecov/codecov-action@v2
\ No newline at end of file
diff --git a/.github/workflows/license.yml b/.github/workflows/license.yml
new file mode 100644
index 00000000..8110d5b5
--- /dev/null
+++ b/.github/workflows/license.yml
@@ -0,0 +1,28 @@
+# Copyright 2021 gotomicro
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Check License Lines
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, labeled, unlabeled]
+    branches:
+      - develop
+      - main
+jobs:
+  check-license-lines:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Check License Lines
+        uses: kt3k/license_checker@v1.0.6
\ No newline at end of file
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
new file mode 100644
index 00000000..6706ec14
--- /dev/null
+++ b/.github/workflows/stale.yml
@@ -0,0 +1,33 @@
+# Copyright 2021 gotomicro
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Mark stale issues and pull requests
+
+on:
+  schedule:
+    - cron: "30 1 * * *"
+
+jobs:
+  stale:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/stale@v4
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          stale-issue-message: 'This issue is inactive for a long time.'
+          stale-pr-message: 'This PR is inactive for a long time'
+          stale-issue-label: 'inactive-issue'
+          stale-pr-label: 'inactive-pr'
diff --git a/.gitignore b/.gitignore
index 66fd13c9..bbfd2cb5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,5 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+
+.idea
\ No newline at end of file
diff --git a/.licenserc.json b/.licenserc.json
new file mode 100644
index 00000000..688e5a13
--- /dev/null
+++ b/.licenserc.json
@@ -0,0 +1,5 @@
+{
+  "**/*.go": "// Copyright 2021 gotomicro",
+  "**/*.{yml,toml}": "# Copyright 2021 gotomicro"
+  "**/*.sh": "# Copyright 2021 gotomicro"
+}
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
index 40cda1cc..261eeb9e 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,21 +1,201 @@
-MIT License
-
-Copyright (c) 2021 Go微服务
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
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+      where such license applies only to those patent claims licensable
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+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
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+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..af4cc89e
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,8 @@
+bench:
+	@go test -bench=. -benchmem  ./...
+
+test:
+	@go test -race ./...
+
+setup:
+	sh ./script/setup.sh
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 00000000..92d46dd2
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,11 @@
+module github.com/gotomicro/ego-kit
+
+go 1.18
+
+require (
+	github.com/davecgh/go-spew v1.1.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/objx v0.1.0 // indirect
+	github.com/stretchr/testify v1.7.1 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 00000000..307d5b4a
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,14 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/pool/pool.go b/pool/pool.go
new file mode 100644
index 00000000..f1fe1f2f
--- /dev/null
+++ b/pool/pool.go
@@ -0,0 +1,45 @@
+// Copyright 2021 gotomicro
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pool
+
+import "sync"
+
+// Pool 是对 sync.Pool 的简单封装
+// 会有一些性能损耗，但是基本可以忽略不计。担忧性能问题的可以参考
+type Pool[T any] struct {
+	p *sync.Pool
+}
+
+// New 创建一个 Pool 实例
+// factory 必须返回 T 类型的值，并且不能返回 nil
+func New[T any](factory func() T) *Pool[T] {
+	return &Pool[T]{
+		p: &sync.Pool{
+			New: func() any {
+				return factory()
+			},
+		},
+	}
+}
+
+// Get 取出一个元素
+func (p *Pool[T]) Get() T {
+	return p.p.Get().(T)
+}
+
+// Put 放回去一个元素
+func (p *Pool[T]) Put(t T) {
+	p.p.Put(t)
+}
diff --git a/pool/pool_test.go b/pool/pool_test.go
new file mode 100644
index 00000000..22cb4576
--- /dev/null
+++ b/pool/pool_test.go
@@ -0,0 +1,78 @@
+// Copyright 2021 gotomicro
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pool
+
+import (
+	"fmt"
+	"github.com/stretchr/testify/assert"
+	"sync"
+	"testing"
+)
+
+func TestPool(t *testing.T) {
+	p := New[[]byte](func() []byte {
+		res := make([]byte, 1, 12)
+		res[0] = 'A'
+		return res
+	})
+
+	res := p.Get()
+	assert.Equal(t, "A", string(res))
+	res = append(res, 'B')
+	p.Put(res)
+	res = p.Get()
+	assert.Equal(t, "AB", string(res))
+}
+
+func ExampleNew() {
+	p := New[[]byte](func() []byte {
+		res := make([]byte, 1, 12)
+		res[0] = 'A'
+		return res
+	})
+
+	res := p.Get()
+	fmt.Print(string(res))
+	// Output:
+	// A
+}
+
+// goos: linux
+// goarch: amd64
+// pkg: github.com/gotomicro/ego-kit/pkg/pool
+// cpu: Intel(R) Core(TM) i5-10400F CPU @ 2.90GHz
+// BenchmarkPool_Get/Pool-12                9190246               130.0 ns/op             0 B/op          0 allocs/op
+// BenchmarkPool_Get/sync.Pool-12           9102818               128.6 ns/op             0 B/op          0 allocs/op
+func BenchmarkPool_Get(b *testing.B) {
+	p := New[string](func() string {
+		return ""
+	})
+
+	sp := &sync.Pool{
+		New: func() any {
+			return ""
+		},
+	}
+	b.Run("Pool", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			p.Get()
+		}
+	})
+	b.Run("sync.Pool", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			sp.Get()
+		}
+	})
+}
diff --git a/script/setup.sh b/script/setup.sh
new file mode 100644
index 00000000..03701242
--- /dev/null
+++ b/script/setup.sh
@@ -0,0 +1,29 @@
+# Copyright 2021 gotomicro
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+SOURCE=.github/pre-push
+TARGET=.git/hooks/pre-push
+
+# copy pre-push file if not exist.
+if [ ! -f $TARGET ]; then
+    echo "设置 github hooks..."
+    cp $SOURCE $TARGET
+fi
+
+# add permission to TARGET file.
+test -x $TARGET || chmod +x $TARGET
+
+echo "安装 golangci-lint..."
+# install golangci-lint when golangci-lint not installed.
+go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.42.1
\ No newline at end of file