diff --git a/packages/code-generator/test-cases/rax-app/demo1/schema.json5 b/packages/code-generator/test-cases/rax-app/demo1/schema.json5
index 1d405aee8..282f979e8 100644
--- a/packages/code-generator/test-cases/rax-app/demo1/schema.json5
+++ b/packages/code-generator/test-cases/rax-app/demo1/schema.json5
@@ -1,4 +1,5 @@
 {
+  // 本例是一个非常简单的 Hello world 页面
   // Schema 参见：https://yuque.antfin-inc.com/mo/spec/spec-materials#eNCJr
   version: '1.0.0',
   componentsMap: [
diff --git a/packages/code-generator/test-cases/rax-app/demo2/schema.json5 b/packages/code-generator/test-cases/rax-app/demo2/schema.json5
index 336e37b29..9f7778e7f 100644
--- a/packages/code-generator/test-cases/rax-app/demo2/schema.json5
+++ b/packages/code-generator/test-cases/rax-app/demo2/schema.json5
@@ -1,4 +1,5 @@
 {
+  // 本例是一个比较复杂的，带有循环和条件渲染的，以及有各种事件处理函数的页面
   // Schema 参见：https://yuque.antfin-inc.com/mo/spec/spec-materials#eNCJr
   version: '1.0.0',
   componentsMap: [
diff --git a/packages/code-generator/test-cases/rax-app/demo3/schema.json5 b/packages/code-generator/test-cases/rax-app/demo3/schema.json5
index cb8ba2f85..5652b1db1 100644
--- a/packages/code-generator/test-cases/rax-app/demo3/schema.json5
+++ b/packages/code-generator/test-cases/rax-app/demo3/schema.json5
@@ -1,4 +1,5 @@
 {
+  // 本例是一个路由测试页面，里面有几个页面，相互之间有跳转关系的
   // Schema 参见：https://yuque.antfin-inc.com/mo/spec/spec-materials#eNCJr
   version: '1.0.0',
   componentsMap: [
diff --git a/packages/code-generator/test-cases/rax-app/demo4/schema.json5 b/packages/code-generator/test-cases/rax-app/demo4/schema.json5
index 08afc1463..efa43c840 100644
--- a/packages/code-generator/test-cases/rax-app/demo4/schema.json5
+++ b/packages/code-generator/test-cases/rax-app/demo4/schema.json5
@@ -1,4 +1,5 @@
 {
+  // 本例是为了测试一下小程序的 runtime 模式
   version: '1.0.0',
   componentsMap: [
     {