diff --git a/examples/input.ast b/examples/input.ast
new file mode 100644
index 0000000..1cf4b76
--- /dev/null
+++ b/examples/input.ast
@@ -0,0 +1,2 @@
+let name = input("Your name: ");
+print("Hello, " + name)
\ No newline at end of file
diff --git a/script.ast b/examples/script.ast
similarity index 100%
rename from script.ast
rename to examples/script.ast
diff --git a/src/interpreter/interpreter.rs b/src/interpreter/interpreter.rs
index 266c93e..2f1de77 100644
--- a/src/interpreter/interpreter.rs
+++ b/src/interpreter/interpreter.rs
@@ -11,10 +11,15 @@ pub struct Interpreter {
 impl Interpreter {
     pub fn new() -> Self {
         let env = Rc::new(RefCell::new(Env::new(None)));
+
+        let mut env_mut = env.borrow_mut();
         
         // 注册内置函数
-        env.borrow_mut().define("print".to_string(), Value::NativeFunction(native_print));
-        env.borrow_mut().define("clock".to_string(), Value::NativeFunction(native_clock));
+        env_mut.define("print".to_string(), Value::NativeFunction(native_print));
+        env_mut.define("input".to_string(), Value::NativeFunction(native_input));
+        env_mut.define("clock".to_string(), Value::NativeFunction(native_clock));
+
+        drop(env_mut);
 
         Self { env }
     }
@@ -283,6 +288,17 @@ fn native_print(args: Vec<Value>) -> Value {
     Value::Nil
 }
 
+fn native_input(args: Vec<Value>) -> Value {
+    if let Some(prompt) = args.get(0) {
+        print!("{}", prompt);
+        use std::io::Write;
+        std::io::stdout().flush().unwrap();
+    }
+    let mut buffer = String::new();
+    std::io::stdin().read_line(&mut buffer).unwrap();
+    Value::String(buffer.trim_end().to_string())
+}
+
 // 获取当前时间
 fn native_clock(_args: Vec<Value>) -> Value {
     Value::Number(std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap().as_secs_f64())