diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..6d1235a
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,4 @@
+## 模块打包
+
+## rollup-demo1
+一个简单的示例，使用`rollup -c`打包两个文件
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diff --git a/rollup-demo3/dist/dist.amd.js b/rollup-demo3/dist/dist.amd.js
new file mode 100644
index 0000000..2f8c0aa
--- /dev/null
+++ b/rollup-demo3/dist/dist.amd.js
@@ -0,0 +1,9 @@
+define(function () { 'use strict';
+
+  function logA() {
+    console.log('function logA called');
+  }
+
+  return logA;
+
+});
diff --git a/rollup-demo3/dist/dist.cjs.js b/rollup-demo3/dist/dist.cjs.js
new file mode 100644
index 0000000..280c9b2
--- /dev/null
+++ b/rollup-demo3/dist/dist.cjs.js
@@ -0,0 +1,7 @@
+'use strict';
+
+function logA() {
+  console.log('function logA called');
+}
+
+module.exports = logA;
diff --git a/rollup-demo3/dist/dist.es.js b/rollup-demo3/dist/dist.es.js
new file mode 100644
index 0000000..8e2205f
--- /dev/null
+++ b/rollup-demo3/dist/dist.es.js
@@ -0,0 +1,5 @@
+function logA() {
+  console.log('function logA called');
+}
+
+export default logA;
diff --git a/rollup-demo3/dist/dist.iife.js b/rollup-demo3/dist/dist.iife.js
new file mode 100644
index 0000000..a36b416
--- /dev/null
+++ b/rollup-demo3/dist/dist.iife.js
@@ -0,0 +1,10 @@
+var result = (function () {
+  'use strict';
+
+  function logA() {
+    console.log('function logA called');
+  }
+
+  return logA;
+
+}());
diff --git a/rollup-demo3/dist/dist.umd.js b/rollup-demo3/dist/dist.umd.js
new file mode 100644
index 0000000..6aaad7d
--- /dev/null
+++ b/rollup-demo3/dist/dist.umd.js
@@ -0,0 +1,13 @@
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (global = global || self, global.result = factory());
+}(this, (function () { 'use strict';
+
+  function logA() {
+    console.log('function logA called');
+  }
+
+  return logA;
+
+})));
diff --git a/rollup-demo3/lib.js b/rollup-demo3/lib.js
new file mode 100644
index 0000000..d3cf4c9
--- /dev/null
+++ b/rollup-demo3/lib.js
@@ -0,0 +1,7 @@
+export function logA() {
+  console.log('function logA called')
+}
+
+export function logB() {
+  console.log('function logB called')
+}
\ No newline at end of file
diff --git a/rollup-demo3/main.js b/rollup-demo3/main.js
new file mode 100644
index 0000000..dfae8d1
--- /dev/null
+++ b/rollup-demo3/main.js
@@ -0,0 +1,5 @@
+import {
+  logA
+} from './lib'
+
+export default logA
\ No newline at end of file
diff --git a/rollup-demo3/package-lock.json b/rollup-demo3/package-lock.json
new file mode 100644
index 0000000..5c614b6
--- /dev/null
+++ b/rollup-demo3/package-lock.json
@@ -0,0 +1,37 @@
+{
+  "name": "rollup-demo1",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@types/estree": {
+      "version": "0.0.39",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
+      "integrity": "sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==",
+      "dev": true
+    },
+    "@types/node": {
+      "version": "12.12.11",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.11.tgz",
+      "integrity": "sha512-O+x6uIpa6oMNTkPuHDa9MhMMehlxLAd5QcOvKRjAFsBVpeFWTOPnXbDvILvFgFFZfQ1xh1EZi1FbXxUix+zpsQ==",
+      "dev": true
+    },
+    "acorn": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
+      "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ==",
+      "dev": true
+    },
+    "rollup": {
+      "version": "1.27.3",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.27.3.tgz",
+      "integrity": "sha512-79AEh4m5NPCz97GTuIoXpSFIMPyk2AiqVQp040baSRPXk/I4YMGt5/CR9GX5oEYEkxwBZoWLheaS1/w/FidfJw==",
+      "dev": true,
+      "requires": {
+        "@types/estree": "*",
+        "@types/node": "*",
+        "acorn": "^7.1.0"
+      }
+    }
+  }
+}
diff --git a/rollup-demo3/package.json b/rollup-demo3/package.json
new file mode 100644
index 0000000..e63b95a
--- /dev/null
+++ b/rollup-demo3/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "rollup-demo1",
+  "version": "1.0.0",
+  "description": "",
+  "main": "main.js",
+  "scripts": {
+    "build": "rollup -c"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+http://git.poorman.top/topuser/rollup-demo"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "rollup": "^1.27.3"
+  }
+}
\ No newline at end of file
diff --git a/rollup-demo3/readme b/rollup-demo3/readme
new file mode 100644
index 0000000..3804e69
--- /dev/null
+++ b/rollup-demo3/readme
@@ -0,0 +1,3 @@
+### 这里是一个简单的demo,用于最简单的模块打包
+
+https://segmentfault.com/a/1190000010628352?utm_source=tag-newest#articleHeader4
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diff --git a/rollup-demo3/rollup.config.js b/rollup-demo3/rollup.config.js
new file mode 100644
index 0000000..25833aa
--- /dev/null
+++ b/rollup-demo3/rollup.config.js
@@ -0,0 +1,12 @@
+const isPord = process.env.NODE_ENV == 'production';
+
+const input = 'main.js';
+const format = 'cjs';
+const dest = './dist/dist.js';
+
+
+module.exports = {
+  input,
+  format,
+  dest
+}
\ No newline at end of file