diff --git a/zh/07.3.md b/zh/07.3.md
index 753c28ea6..7db76694f 100644
--- a/zh/07.3.md
+++ b/zh/07.3.md
@@ -75,23 +75,29 @@ func main() {
 	src := string(body)
 
 	//将HTML标签全转换成小写
-	re, _ := regexp.Compile("\\<[\\S\\s]+?\\>")
+	re, _ := regexp.Compile(`<[\S\s]+?>`)
 	src = re.ReplaceAllStringFunc(src, strings.ToLower)
 
 	//去除STYLE
-	re, _ = regexp.Compile("\\<style[\\S\\s]+?\\</style\\>")
+	re, _ = regexp.Compile(`<style[\S\s]+?</style>`)
+	src = re.ReplaceAllString(src, "")
+	//去除HTMLUnscape的STYLE
+	re, _ = regexp.Compile(`&lt;style[\S\s]+?&lt;/style&gt;`)
 	src = re.ReplaceAllString(src, "")
 
 	//去除SCRIPT
-	re, _ = regexp.Compile("\\<script[\\S\\s]+?\\</script\\>")
+	re, _ = regexp.Compile(`<script[\S\s]+?</script>`)
+	src = re.ReplaceAllString(src, "")
+	//去除HTMLUnsapce的SCRIPT
+	re, _ = regexp.Compile(`&lt;script[\S\s]+?&lt;/script&gt;`)
 	src = re.ReplaceAllString(src, "")
 
 	//去除所有尖括号内的HTML代码，并换成换行符
-	re, _ = regexp.Compile("\\<[\\S\\s]+?\\>")
+	re, _ = regexp.Compile(`<[\S\s]+?>`)
 	src = re.ReplaceAllString(src, "\n")
 
 	//去除连续的换行符
-	re, _ = regexp.Compile("\\s{2,}")
+	re, _ = regexp.Compile(`\s{2,}`)
 	src = re.ReplaceAllString(src, "\n")
 
 	fmt.Println(strings.TrimSpace(src))