fix: coding style and file format for all example.

eBook/examples/chapter_11/reflect2.go

@@ -1,33 +1,34 @@
-// reflect2.go
-package main
-
-import (
-	"fmt"
-	"reflect"
-)
-
-func main() {
-	var x float64 = 3.4
-	v := reflect.ValueOf(x)
-	// setting a value:
-	// v.SetFloat(3.1415) // Error: will panic: reflect.Value.SetFloat using unaddressable value
-	fmt.Println("settability of v:", v.CanSet())
-	v = reflect.ValueOf(&x) // Note: take the address of x.
-	fmt.Println("type of v:", v.Type())
-	fmt.Println("settability of v:", v.CanSet())
-	v = v.Elem()
-	fmt.Println("The Elem of v is: ", v)
-	fmt.Println("settability of v:", v.CanSet())
-	v.SetFloat(3.1415) // this works!
-	fmt.Println(v.Interface())
-	fmt.Println(v)
-}
-/* Output:
-settability of v: false
-type of v: *float64
-settability of v: false
-The Elem of v is:  <float64 Value>
-settability of v: true
-3.1415
-<float64 Value>
-*/
+// reflect2.go
+package main
+
+import (
+	"fmt"
+	"reflect"
+)
+
+func main() {
+	var x float64 = 3.4
+	v := reflect.ValueOf(x)
+	// setting a value:
+	// v.SetFloat(3.1415) // Error: will panic: reflect.Value.SetFloat using unaddressable value
+	fmt.Println("settability of v:", v.CanSet())
+	v = reflect.ValueOf(&x) // Note: take the address of x.
+	fmt.Println("type of v:", v.Type())
+	fmt.Println("settability of v:", v.CanSet())
+	v = v.Elem()
+	fmt.Println("The Elem of v is: ", v)
+	fmt.Println("settability of v:", v.CanSet())
+	v.SetFloat(3.1415) // this works!
+	fmt.Println(v.Interface())
+	fmt.Println(v)
+}
+
+/* Output:
+settability of v: false
+type of v: *float64
+settability of v: false
+The Elem of v is:  <float64 Value>
+settability of v: true
+3.1415
+<float64 Value>
+*/