Fix bug 570

app/static/js/word_operation.js

@@ -201,7 +201,7 @@ function random_select_word(word) {
       // 将NodeList转换为数组
       let wordContainersArray = [...wordContainers];
 
-      // 随机打乱数组
+      // 随机打乱数组，乱序
       for (let i = wordContainersArray.length - 1; i > 0; i--) {
         const j = Math.floor(Math.random() * (i + 1));
         [wordContainersArray[i], wordContainersArray[j]] = [wordContainersArray[j], wordContainersArray[i]];