From ef9d11a57d7ccbf2377440ea2e81a5e4017315ee Mon Sep 17 00:00:00 2001
From: akorastelev <akorastelev@ozon.ru>
Date: Mon, 12 Apr 2021 16:12:24 +0300
Subject: [PATCH] add lesson_1

---
 lesson1/example1/main.go | 54 +++++++++++++++++++++++++++++++++++++++-
 1 file changed, 53 insertions(+), 1 deletion(-)

diff --git a/lesson1/example1/main.go b/lesson1/example1/main.go
index 6cd19c0..1d77a5c 100644
--- a/lesson1/example1/main.go
+++ b/lesson1/example1/main.go
@@ -1 +1,53 @@
-package example1
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+)
+
+func main() {
+	err := thisIsPanic()
+	if err != nil {
+		fmt.Println(err.time.Format("Jan _2 15:04:05.00"), err.error)
+	}
+	createFile("dd.txt")
+}
+
+type errorOutOfRange struct {
+	time  time.Time
+	error interface{}
+}
+
+func NewError(s interface{}) *errorOutOfRange {
+	t := time.Now()
+	return &errorOutOfRange{
+		time:  t,
+		error: s,
+	}
+}
+
+func thisIsPanic() (err *errorOutOfRange) {
+	defer func() {
+		if p := recover(); p != nil {
+			err = NewError(p)
+		}
+	}()
+
+	a := []int{1, 2, 3}
+	fmt.Println(a[10])
+	return nil
+}
+
+func createFile(name string) {
+	file, err := os.OpenFile(name, os.O_RDWR|os.O_CREATE, 0755)
+	if err != nil {
+		fmt.Println(err)
+	}
+	_, err = file.Write([]byte("Hello"))
+	if err != nil {
+		fmt.Println(err)
+	}
+	defer file.Close()
+
+}