diff --git a/docs/notes/Java 容器.md b/docs/notes/Java 容器.md
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--- a/docs/notes/Java 容器.md
+++ b/docs/notes/Java 容器.md
@@ -24,7 +24,7 @@
## Collection
- 
+ 
### 1. Set
@@ -50,8 +50,7 @@
## Map
- 
-
+ 
- TreeMap：基于红黑树实现。
@@ -66,8 +65,7 @@
## 迭代器模式
- 
-
+ 
Collection 继承了 Iterable 接口，其中的 iterator() 方法能够产生一个 Iterator 对象，通过这个对象就可以迭代遍历 Collection 中的元素。
@@ -128,7 +126,7 @@ public class ArrayList extends AbstractList
private static final int DEFAULT_CAPACITY = 10;
```
- 
+ 
### 2. 扩容
@@ -391,7 +389,7 @@ transient Node first;
transient Node last;
```
- 
+ 
### 2. 与 ArrayList 的比较
@@ -413,7 +411,7 @@ transient Entry[] table;
Entry 存储着键值对。它包含了四个字段，从 next 字段我们可以看出 Entry 是一个链表。即数组中的每个位置被当成一个桶，一个桶存放一个链表。HashMap 使用拉链法来解决冲突，同一个链表中存放哈希值相同的 Entry。
- 
+ 
```java
static class Entry implements Map.Entry {
@@ -489,7 +487,7 @@ map.put("K3", "V3");
- 计算键值对所在的桶；
- 在链表上顺序查找，时间复杂度显然和链表的长度成正比。
- 
+ 
### 3. put 操作
@@ -825,7 +823,7 @@ final Segment[] segments;
static final int DEFAULT_CONCURRENCY_LEVEL = 16;
```
-
+
### 2. size 操作
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