修复一些错误

07.5.md

@@ -90,12 +90,12 @@
 	
 	func main() {
 		userFile := "astaxie.txt"
-		fout, err := os.Create(userFile)
-		defer fout.Close()
+		fout, err := os.Create(userFile)		
 		if err != nil {
 			fmt.Println(userFile, err)
 			return
 		}
+		defer fout.Close()
 		for i := 0; i < 10; i++ {
 			fout.WriteString("Just a test!\r\n")
 			fout.Write([]byte("Just a test!\r\n"))
@@ -124,12 +124,12 @@
 	
 	func main() {
 		userFile := "asatxie.txt"
-		fl, err := os.Open(userFile)
-		defer fl.Close()
+		fl, err := os.Open(userFile)		
 		if err != nil {
 			fmt.Println(userFile, err)
 			return
 		}
+		defer fl.Close()
 		buf := make([]byte, 1024)
 		for {
 			n, _ := fl.Read(buf)