lib/os:mkdir demo

_demo/mkdirdemo/mkdir.go

@@ -1,11 +1,33 @@
 package main
 
 import (
+	"fmt"
 	"os"
-	"path/filepath"
 )
 
 func main() {
-	dirPath := filepath.Join("temp", "myapp", "data", "logs")
-	os.MkdirAll(dirPath, 0755)
+	tempDir, err := os.MkdirTemp("", "example*")
+	if err != nil {
+		fmt.Println("Failed to create temp directory:", err)
+		return
+	}
+	defer os.Remove(tempDir)
+	fmt.Println("Temp directory:", tempDir)
+
+	tempFile, err := os.CreateTemp("", "example*.txt")
+	if err != nil {
+		fmt.Println("Failed to create temp file:", err)
+		return
+	}
+	defer tempFile.Close()
+	defer os.Remove(tempFile.Name())
+	fmt.Println("Temp file:", tempFile.Name())
+
+	// todo(zzy): MkdirAll nested example
+	err = os.MkdirAll(tempDir, 0755)
+	if err != nil {
+		fmt.Println("Failed to create nested directory:", err)
+		return
+	}
+	fmt.Println("Nest directory 3:", tempDir)
 }