diff --git a/eBook/04.2.md b/eBook/04.2.md
index 33f653b..10ca102 100644
--- a/eBook/04.2.md
+++ b/eBook/04.2.md
@@ -49,8 +49,8 @@ Go 中的包模型采用了显式依赖关系的机制来达到快速编译的
 
 如果需要多个包，它们可以被分别导入：
 
-    import “fmt”
-    import “os”
+    import "fmt"
+    import "os"
 
 或：
 
@@ -247,9 +247,9 @@ Example 4.4 [gotemplate.go](examples/chapter_4/gotemplate.go)
 
     package main
     import (
-        “fmt”
+        "fmt"
     )
-    const c = “C”
+    const c = "C"
     var v int = 5
     type T struct{}
     func init() { // initialization of package
diff --git a/eBook/examples/chapter_4/gotemplate.go b/eBook/examples/chapter_4/gotemplate.go
index d087c69..b51a2e0 100644
--- a/eBook/examples/chapter_4/gotemplate.go
+++ b/eBook/examples/chapter_4/gotemplate.go
@@ -1,10 +1,10 @@
 package main
 
 import (
-   “fmt”
+   "fmt"
 )
 
-const c = “C”
+const c = "C"
 
 var v int = 5