diff --git a/docs/chapter_computational_complexity/time_complexity.md b/docs/chapter_computational_complexity/time_complexity.md
index 8c2edb08a..2ba703457 100644
--- a/docs/chapter_computational_complexity/time_complexity.md
+++ b/docs/chapter_computational_complexity/time_complexity.md
@@ -412,7 +412,7 @@ $$
         a *= 2; // +1
         // 循环 n 次
         for(var i = 0; i < n; i++){ // +1
-            console.log(0) // +1
+            console.log(0); // +1
         }
 
     }
@@ -428,7 +428,7 @@ $$
         a *= 2; // +1
         // 循环 n 次
         for(var i = 0; i < n; i++){ // +1
-            console.log(0) // +1
+            console.log(0); // +1
         }
 
     }