diff --git a/app/static/js/highlight.js b/app/static/js/highlight.js
index d7d72c2..3070d43 100644
--- a/app/static/js/highlight.js
+++ b/app/static/js/highlight.js
@@ -34,10 +34,10 @@ function highLight() {
     }
     const list = allWords.split(" ");//将所有的生词放入一个list中，用于后续处理
     //判断获取的单词不能为空
-    if(word !== null && word !== "" && word !== " "){
+    if(word != null && word != "" && word != " "){
         let articleContent_fb2 = articleContent;
-        if(localStorage.getItem("nowWord").indexOf(word) !== -1){
-            while(articleContent_fb2.toLowerCase().indexOf(word.toLowerCase()) !== -1){
+        if(localStorage.getItem("nowWord").indexOf(word) != -1){
+            while(articleContent_fb2.toLowerCase().indexOf(word.toLowerCase()) != -1){
                 // 找到副本中和list[i]匹配的第一个单词(第一种匹配情况),并赋值给list[i]。
                 const index = articleContent_fb2.toLowerCase().indexOf(word.toLowerCase());
                 word = articleContent_fb2.substring(index, index + word.length);