diff --git a/.env b/.env
new file mode 100644
index 0000000..9fbd201
--- /dev/null
+++ b/.env
@@ -0,0 +1 @@
+GH_TOKEN=
\ No newline at end of file
diff --git a/README.md b/README.md
index 9ba47cf..71aa0da 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,8 @@
-# issue-helper
\ No newline at end of file
+# Issue Helper
+
+A GitHub action to help you deal with the issue.
+
+## Usage
+
+### `add-assignees`
+
diff --git a/README.zh-CN.md b/README.zh-CN.md
new file mode 100644
index 0000000..6781fa9
--- /dev/null
+++ b/README.zh-CN.md
@@ -0,0 +1,8 @@
+# Issue Helper
+
+一个可以帮助你处理 issue 的 GitHub Action。
+
+## 使用
+
+
+
diff --git a/package.json b/package.json
index 2ee7d35..1caa829 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,7 @@
     "@octokit/rest": "^18.0.12"
   },
   "devDependencies": {
-    "@vercel/ncc": "^0.25.1"
+    "@vercel/ncc": "^0.25.1",
+    "dotenv": "^8.2.0"
   }
 }
diff --git a/src/main.js b/src/main.js
index 6bf33fa..8a5cca3 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,24 +1,60 @@
+require('dotenv').config();
+
 const core = require("@actions/core");
 const github = require("@actions/github");
 const { Octokit } = require('@octokit/rest');
 
-const REACTION_TYPES = [
-  "+1",
-  "-1",
-  "laugh",
-  "confused",
-  "heart",
-  "hooray",
-  "rocket",
-  "eyes",
+const {
+  doAddAssignees
+} = require('./tool');
+
+const ALLACTIONS = [
+  'add-assignees',
+  'add-labels'
 ];
 
 async function main() {
   try { 
-    const token = core.getInput('token');
-    const owner = github.context.repo.owner;
-    const repo = github.context.repo.repo;
-    console.log(owner, repo)
+    const token = core.getInput('token') || process.env.GH_TOKEN;
+
+    const octokit = new Octokit({ auth: `token ${token}` });
+    // const owner = github.context.repo.owner;
+    // const repo = github.context.repo.repo;
+    const owner = 'actions-cool';
+    const repo = 'issue-helper';
+    const issueNumber = core.getInput('issue-number') || 1;
+    const commentId = core.getInput('comment-id');
+    const body = core.getInput("body");
+    // const assignees = core.getInput("assignees");
+    const assignees = 'xrkffgg'
+
+    const actions = ['add-assignees', 'add-labels'];
+    // const actions = core.getInput("actions", { required: true });
+
+    if (typeof(actions) === 'object') {
+      actions.forEach(item => {
+        testActions(item);
+      })
+    } else {
+      testActions(actions);
+    }
+
+    function testActions(action) {
+      if (ALLACTIONS.includes(action)) {
+        choseActions(action);
+      } else {
+        core.setFailed("This actions not supported!");
+      }
+    };
+
+    async function choseActions(action) {
+      switch (action) {
+        case 'add-assignees':
+          await doAddAssignees(octokit, owner, repo, issueNumber, assignees);
+        default: 
+          break;
+      }
+    }
   }
   catch (error) {
     core.setFailed(error.message);
diff --git a/src/tool.js b/src/tool.js
new file mode 100644
index 0000000..00910a3
--- /dev/null
+++ b/src/tool.js
@@ -0,0 +1,30 @@
+const REACTION_TYPES = [
+  "+1",
+  "-1",
+  "laugh",
+  "confused",
+  "heart",
+  "hooray",
+  "rocket",
+  "eyes",
+];
+
+const doAddAssignees = async ({
+  octokit,
+  owner,
+  repo,
+  issueNumber,
+  assignees
+}) => {
+  await octokit.issues.addAssignees({
+    owner,
+    repo,
+    issue_number: issueNumber,
+    assignees
+  });
+};
+
+
+module.exports = {
+  doAddAssignees
+};