diff --git a/.inscode b/.inscode
index 6018963f85face84a015fcd76984af75b06c2c38..899385086e8071bf68b95495e3d3231606d066d2 100644
--- a/.inscode
+++ b/.inscode
@@ -1,6 +1,10 @@
 run = "node --enable-source-maps .build/index.js"
+language = "node"
 
 [env]
 PATH = "/root/${PROJECT_DIR}/.config/npm/node_global/bin:/root/${PROJECT_DIR}/node_modules/.bin:${PATH}"
 XDG_CONFIG_HOME = "/root/.config"
 npm_config_prefix = "/root/${PROJECT_DIR}/.config/npm/node_global"
+
+[debugger]
+program = "main.js"
diff --git a/index.ts b/index.ts
index df8a3b59c0bb8c77ba2f987fdeda605e8cd07bf8..90d9dc20a0db3797a000370789f586aa0e24b624 100644
--- a/index.ts
+++ b/index.ts
@@ -1,2 +1,22 @@
-const s: string = "欢迎来到 InsCode";
-console.log(s);
+let name: string = "Alice";
+let age: number = 30;
+let isActive: boolean = true;
+
+// 函数参数和返回值的类型注释
+function greet(name: string): string {
+  return "Hello, " + name + "!";
+}
+
+// 对象类型注释
+let user: { name: string; age: number } = {
+  name: "Bob",
+  age: 25
+};
+
+// 数组类型注释
+let numbers: number[] = [1, 2, 3, 4, 5];
+let names: Array<string> = ["Alice", "Bob", "Charlie"];
+
+// 元组类型注释
+let tuple: [string, number] = ["Alice", 30];
+