diff --git a/ch3/os/src/main.rs b/ch3/os/src/main.rs
index bb76f3f..d7018a4 100644
--- a/ch3/os/src/main.rs
+++ b/ch3/os/src/main.rs
@@ -14,6 +14,7 @@ pub mod trap;
 pub mod syscall;
 pub mod loader;
 pub mod config;
+pub mod task;
 
 // 汇编脚本引入, 调整内核的内存布局之后, 会跳入到 rust_main中执行
 global_asm!(include_str!("entry.asm"));
@@ -40,8 +41,8 @@ pub fn rust_main(){
 
     loader::load_app();
     trap::init();
-    batch::init();
-    batch::run_next_app();
+    // batch::init();
+    // batch::run_next_app();
     loop {
 
     }
diff --git a/ch3/os/src/task/context.rs b/ch3/os/src/task/context.rs
new file mode 100644
index 0000000..cb52c48
--- /dev/null
+++ b/ch3/os/src/task/context.rs
@@ -0,0 +1,12 @@
+
+
+
+
+
+pub struct TaskContext{
+    ra: usize,  // 保存了进行切换之后需要 跳转继续执行的地址
+    sp: usize,  // 当前任务的内核栈的栈顶
+    s: [usize; 12]  // 当前任务内核状态
+}
+
+
diff --git a/ch3/os/src/task/mod.rs b/ch3/os/src/task/mod.rs
new file mode 100644
index 0000000..019f068
--- /dev/null
+++ b/ch3/os/src/task/mod.rs
@@ -0,0 +1 @@
+mod context;
\ No newline at end of file