diff --git a/day05/homework/log/go.mod b/day05/homework/log/go.mod
new file mode 100644
index 0000000..2c00743
--- /dev/null
+++ b/day05/homework/log/go.mod
@@ -0,0 +1,3 @@
+module userapp
+
+go 1.25.6
diff --git a/day06/userapp/README.md b/day06/userapp/README.md
new file mode 100644
index 0000000..d698c9a
--- /dev/null
+++ b/day06/userapp/README.md
@@ -0,0 +1,16 @@
+# 用户管理系统
+
+
+## 初始化项目工程
+
+初始化项目工程(用户管理系统)
+```go
+cd day06/userapp
+go mod init userapp
+
+go: creating new go.mod: module userapp
+```
+
+go.mod 会通过 go mod init 创建, 创建之后, go mod tidy 会自动添加依赖包
+
+为我们的工程 添加入口文件(main.go)
\ No newline at end of file
diff --git a/day06/userapp/go.mod b/day06/userapp/go.mod
new file mode 100644
index 0000000..2c00743
--- /dev/null
+++ b/day06/userapp/go.mod
@@ -0,0 +1,3 @@
+module userapp
+
+go 1.25.6
diff --git a/day06/userapp/main.go b/day06/userapp/main.go
new file mode 100644
index 0000000..7572f0e
--- /dev/null
+++ b/day06/userapp/main.go
@@ -0,0 +1,7 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("hello user app")
+}