diff --git a/.gitignore b/.gitignore
index 259148f..1d82f02 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,6 @@
 *.exe
 *.out
 *.app
+
+.cache
+.~
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 62e7228..e6976fb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,12 +21,17 @@ if(NOT CMAKE_BUILD_TYPE)
       "Choose the type of build, options are: Debug Release." FORCE)
 endif(NOT CMAKE_BUILD_TYPE)
 
+# Set output directories
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin)
+
 # ANTLR
 set(ANTLR_EXECUTABLE "${PROJECT_SOURCE_DIR}/antlr/antlr-4.9.3-complete.jar")
 set(ANTLR_RUNTIME "${PROJECT_SOURCE_DIR}/antlr/antlr4-runtime")
 
 set(ANTLR4_INSTALL ON)
-set(ANTLR_BUILD_CPP_TESTS OFF)
+# set(ANTLR_BUILD_CPP_TESTS OFF) # Only for ANTLR 4.10.0 and later versions
 add_subdirectory(${ANTLR_RUNTIME})
 
 # Project source files
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..27b5e69
--- /dev/null
+++ b/README.md
@@ -0,0 +1,51 @@
+# SysY Compiler
+
+用于实现SysY编译器的代码框架。
+
+## Getting Started
+
+建议使用Ubuntu系统，原生版本与WSL版本均可。
+
+[Ubuntu下载与安装说明](https://ubuntu.com/download/desktop)
+[WSL Ubuntu安装说明](https://learn.microsoft.com/en-us/windows/wsl/install)
+
+SysY编译器前端基于[ANTLR](https://www.antlr.org/index.html)工具实现，本仓库已经包含ANTLR 4.9.3版本的可执行程序与C++运行时库，但编译ANTLR运行时库存在一些依赖，需要提前安装。
+
+```bash
+sudo apt install uuid-dev libutfcpp-dev pkg-config python3-pip make git
+pip3 install cmake
+```
+
+依赖安装完成后，可以开始构建SysY编译器（构建过程包含了ANTLR运行时库的构建）。
+
+```bash
+git clone https://gitee.com/xsu1989/sysy.git
+cd sysy
+cmake -S . -B build
+cmake --build build
+```
+
+构建完成后，可以运行一个小的测试用例。该测试将逗号分隔的整数或字符串列表进行格式化后重新输出，即将相邻参数之间的分隔统一调整为逗号外加一个空格。
+
+```bash
+cat /test/funcrparams.sysy
+# -> 1,0xa ,  011,	"hellow"
+./build/bin/sysyc test/funcrparams.sy
+# -> 1, 0xa, 011, "hellow"
+```
+
+## Documentation
+
+[ANTLR手册](doc/The%20Definitive%20ANTLR%204%20Reference.pdf)
+[SysY语言规范](doc/sysy-2022-spec.pdf)
+[SysY运行时库](doc/sysy-2022-runtime.pdf)
+
+## 实验1：用ANTLR实现SysY词法/语法分析器  
+
+当前的代码框架已经部署好了编译环境，同学们可专注于程序开发。
+
+在实验1中，同学们需要完成的任务包括
+
+- 参照SysY语言规范，修改`src/SysY.g4`文件，实现SysY词法/语法的完整定义
+- 修改任意代码后需要重新执行`cmake --build build`命令重新构建项目，ANTLR工具会从`SysY.g4`生成词法/语法分析器，生成的文件位于`./build/src`目录
+- （进阶内容）修改`src/ASTPrinter.h`与`src/ASTPrinter.cpp`，实现从AST输出源程序，但输出的源程序是经过格式化的，测试用例为`test/format-test.sy`，格式化后的参考结果为`test/format-ref.sy`
diff --git a/test/format-ref.sy b/test/format-ref.sy
new file mode 100644
index 0000000..b34ec8a
--- /dev/null
+++ b/test/format-ref.sy
@@ -0,0 +1,31 @@
+int get_one(int a) {
+  return 1;
+}
+
+int deepWhileBr(int a, int b) {
+  int c;
+  c = a + b;
+  while (c < 75) {
+    int d;
+    d = 42;
+    if (c < 100) {
+      c = c + d;
+      if (c > 99) {
+        int e;
+        e = d * 2;
+        if (get_one(0) == 1) {
+          c = e * 2;
+        }
+      }
+    }
+  }
+  return (c);
+}
+
+int main() {
+  int p;
+  p = 2;
+  p = deepWhileBr(p, p);
+  putint(p);
+  return 0;
+}
diff --git a/test/format-test.sy b/test/format-test.sy
new file mode 100644
index 0000000..756e5f8
--- /dev/null
+++ b/test/format-test.sy
@@ -0,0 +1,30 @@
+int get_one(int a)
+{
+  return 1;
+}
+
+
+
+int deepWhileBr(int a,int b){
+  int c;
+    c = a + b;
+  while(c<75) {
+  int d; d=42;
+    if (c<100) {
+      c =c+d;
+      if (c > 99) {
+        int e;
+        e = d*2;
+        if (get_one(0)==1) c=e * 2;
+      }
+    }
+  }
+  return (c);
+}
+int main() {
+  int p;
+  p = 2;
+  p = deepWhileBr(p, p);
+  putint(p);
+  return 0;
+}
diff --git a/test/funcrparams.sy b/test/funcrparams.sy
new file mode 100644
index 0000000..f7f0055
--- /dev/null
+++ b/test/funcrparams.sy
@@ -0,0 +1 @@
+1,0xa ,  011,	"hellow"