Merge pull request #387 from amirhasanpour/csv

Update 4.11-csv.md

Author: ja7ad

content/chapter 4/4.11-csv.md

@@ -187,7 +187,6 @@ func main() {
     f, err := os.Open("users.csv")
 
     if err != nil {
-
         log.Fatal(err)
     }
 
@@ -239,13 +238,13 @@ func main() {
     }
 
     f, err := os.Create("users.csv")
-    defer f.Close()
 
     if err != nil {
-
-        log.Fatalln("failed to open file", err)
+        log.Fatalln("failed to create file", err)
     }
 
+	defer f.Close()
+
     w := csv.NewWriter(f)
     defer w.Flush()
 
@@ -265,40 +264,39 @@ func main() {
 تابع WriteAll چندین رکورد CSV را با استفاده از Write برای writer می‌نویسد و سپس Flush را فراخوانی می‌کند.
 
 {{< play >}}
-
 //write_all.go//
 
 package main
 
 import (
-    "encoding/csv"
-    "log"
-    "os"
+	"encoding/csv"
+	"log"
+	"os"
 )
 
 func main() {
 
-    records := [][]string{
-        {"first_name", "last_name", "occupation"},
-        {"John", "Doe", "gardener"},
-        {"Lucy", "Smith", "teacher"},
-        {"Brian", "Bethamy", "programmer"},
-    }
+	records := [][]string{
+		{"first_name", "last_name", "occupation"},
+		{"John", "Doe", "gardener"},
+		{"Lucy", "Smith", "teacher"},
+		{"Brian", "Bethamy", "programmer"},
+	}
 
-    f, err := os.Create("users.csv")
-    defer f.Close()
+	f, err := os.Create("users.csv")
 
-    if err != nil {
+	if err != nil {
+		log.Fatalln("failed to create file", err)
+	}
 
-        log.Fatalln("failed to open file", err)
-    }
+	defer f.Close()
 
-    w := csv.NewWriter(f)
-    err = w.WriteAll(records) // calls Flush internally
+	w := csv.NewWriter(f)
+	err = w.WriteAll(records) // calls Flush internally
 
-    if err != nil {
-        log.Fatal(err)
-    }
+	if err != nil {
+		log.Fatal(err)
+	}
 }
 {{< /play >}}