diff --git a/docs/chapter_computational_complexity/time_complexity.md b/docs/chapter_computational_complexity/time_complexity.md
index ba11f0272..bc8be8913 100644
--- a/docs/chapter_computational_complexity/time_complexity.md
+++ b/docs/chapter_computational_complexity/time_complexity.md
@@ -908,7 +908,7 @@ $$
     ```go title="time_complexity.go"
      /* 平方阶（冒泡排序） */
      func bubbleSort(nums []int) int {
-        count := 0	// 计数器
+        count := 0 // 计数器
         // 外循环：待排序元素数量为 n-1, n-2, ..., 1
         for i := len(nums) - 1; i > 0; i-- {
             // 内循环：冒泡操作