diff --git a/sourcecode/ts-base/src/part2.project/01.module/es6/a.ts b/sourcecode/ts-base/src/part2.project/01.module/es6/a.ts
new file mode 100644
index 00000000..4efa698e
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/01.module/es6/a.ts
@@ -0,0 +1,28 @@
+// 单独导出
+export let a = 1
+
+// 批量导出
+let b = 2
+let c = 3
+export { b, c }
+
+// 导出接口
+export interface P {
+    x: number;
+    y: number;
+}
+
+// 导出函数
+export function f() {}
+
+// 导出时起别名
+function g() {}
+export { g as G }
+
+// 默认导出，无需函数名
+export default function () {
+    console.log("I'm default")
+}
+
+// 引入外部模块，重新导出
+export { str as hello } from './b'
diff --git a/sourcecode/ts-base/src/part2.project/01.module/es6/b.ts b/sourcecode/ts-base/src/part2.project/01.module/es6/b.ts
new file mode 100644
index 00000000..529f6e08
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/01.module/es6/b.ts
@@ -0,0 +1,2 @@
+// 导出常量
+export const str = 'Hello'
\ No newline at end of file
diff --git a/sourcecode/ts-base/src/part2.project/01.module/es6/c.ts b/sourcecode/ts-base/src/part2.project/01.module/es6/c.ts
new file mode 100644
index 00000000..34917331
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/01.module/es6/c.ts
@@ -0,0 +1,16 @@
+import { a, b, c } from './a'; // 批量导入
+import { P } from './a';       // 导入接口
+import { f as F } from './a';  // 导入时起别名
+import * as All from './a';    // 导入模块中的所有成员，绑定在 All 上
+import myFunction from './a';  // 不加{}，导入默认
+
+console.log(a, b, c)
+
+let p: P = {
+    x: 1,
+    y: 1
+}
+
+console.log(All)
+
+myFunction()
\ No newline at end of file
diff --git a/sourcecode/ts-base/src/part2.project/01.module/es6/d.ts b/sourcecode/ts-base/src/part2.project/01.module/es6/d.ts
new file mode 100644
index 00000000..f2cf8815
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/01.module/es6/d.ts
@@ -0,0 +1,4 @@
+export = function () {
+    console.log("I'm default")
+}
+// export let a = 1
\ No newline at end of file
diff --git a/sourcecode/ts-base/src/part2.project/01.module/node/a.node.ts b/sourcecode/ts-base/src/part2.project/01.module/node/a.node.ts
new file mode 100644
index 00000000..2ed40dbd
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/01.module/node/a.node.ts
@@ -0,0 +1,7 @@
+let a = {
+    x: 1,
+    y: 2
+}
+
+// 整体导出
+module.exports = a
diff --git a/sourcecode/ts-base/src/part2.project/01.module/node/b.node.ts b/sourcecode/ts-base/src/part2.project/01.module/node/b.node.ts
new file mode 100644
index 00000000..322ae596
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/01.module/node/b.node.ts
@@ -0,0 +1,5 @@
+// exports === module.exports
+// 导出多个变量
+// module.exports = {}
+exports.c = 3
+exports.d = 4
\ No newline at end of file
diff --git a/sourcecode/ts-base/src/part2.project/01.module/node/c.node.ts b/sourcecode/ts-base/src/part2.project/01.module/node/c.node.ts
new file mode 100644
index 00000000..263f306e
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/01.module/node/c.node.ts
@@ -0,0 +1,11 @@
+let c1 = require('./a.node')
+let c2 = require('./b.node')
+let c3 = require('../es6/a')
+import c4 = require('../es6/d')
+
+console.log(c1)
+console.log(c2)
+// c3()
+// console.log(c3)
+// c3.default()
+c4()
diff --git a/sourcecode/ts-base/src/part2.project/02.namespace/a.ts b/sourcecode/ts-base/src/part2.project/02.namespace/a.ts
new file mode 100644
index 00000000..d50e9765
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/02.namespace/a.ts
@@ -0,0 +1,6 @@
+namespace Shape {
+    const pi = Math.PI
+    export function cricle(r: number) {
+        return pi * r ** 2
+    }
+}
diff --git a/sourcecode/ts-base/src/part2.project/02.namespace/b.ts b/sourcecode/ts-base/src/part2.project/02.namespace/b.ts
new file mode 100644
index 00000000..08e7589c
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/02.namespace/b.ts
@@ -0,0 +1,12 @@
+/// <reference path="a.ts" />
+namespace Shape {
+    export function square(x: number) {
+        return x * x
+    }
+}
+
+console.log(Shape.cricle(2))
+console.log(Shape.square(2))
+
+import cricle = Shape.cricle
+console.log(cricle(2))
diff --git a/sourcecode/ts-base/src/part2.project/03.merge/merge.ts b/sourcecode/ts-base/src/part2.project/03.merge/merge.ts
new file mode 100644
index 00000000..751094b4
--- /dev/null
+++ b/sourcecode/ts-base/src/part2.project/03.merge/merge.ts
@@ -0,0 +1,43 @@
+interface A {
+    x: number;
+    // y: string;
+    foo(bar: number): number; // 5
+    foo(bar: 'a'): string; // 2
+}
+
+interface A {
+    y: number;
+    foo(bar: string): string; // 3
+    foo(bar: string[]): string[]; // 4
+    foo(bar: 'b'): string; // 1
+}
+
+let a: A = {
+    x: 1,
+    y: 2,
+    foo(bar: any) {
+        return bar
+    }
+}
+
+class C {}
+namespace C {
+    export let state = 1
+}
+console.log(C.state)
+
+function Lib() {}
+namespace Lib {
+    export let version = '1.0'
+}
+console.log(Lib.version)
+
+enum Color {
+    Red,
+    Yellow,
+    Blue
+}
+namespace Color {
+    export function mix() {}
+}
+console.log(Color)