From 163ec3312bf3db41811113fd12ba82a916e440be Mon Sep 17 00:00:00 2001
From: icodeajk <1181674815@qq.com>
Date: Thu, 7 Jun 2018 09:35:34 +0800
Subject: [PATCH 1/2] add some notes

---
 6.quickSort.md | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/6.quickSort.md b/6.quickSort.md
index 28ad477..eb8706f 100644
--- a/6.quickSort.md
+++ b/6.quickSort.md
@@ -51,7 +51,7 @@ function partition(arr, left ,right) {     // 分区操作
         if (arr[i] < arr[pivot]) {
             swap(arr, i, index);
             index++;
-        }        
+        }
     }
     swap(arr, pivot, index - 1);
     return index-1;
@@ -62,7 +62,10 @@ function swap(arr, i, j) {
     arr[i] = arr[j];
     arr[j] = temp;
 }
-function partition2(arr, low, high) {
+
+
+/*方法二：记得有三个参数！
+ function partition2(arr, low, high) {
   let pivot = arr[low];
   while (low < high) {
     while (low < high && arr[high] > pivot) {
@@ -85,7 +88,7 @@ function quickSort2(arr, low, high) {
     quickSort2(arr, pivot + 1, high);
   }
   return arr;
-}
+} */
 
 ```
 

From f283dc8d06ad5263b7411b1897f3a080677f242a Mon Sep 17 00:00:00 2001
From: icodeajk <1181674815@qq.com>
Date: Thu, 7 Jun 2018 09:40:22 +0800
Subject: [PATCH 2/2] add some notes

---
 5.mergeSort.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/5.mergeSort.md b/5.mergeSort.md
index bf0de32..bd79090 100644
--- a/5.mergeSort.md
+++ b/5.mergeSort.md
@@ -41,7 +41,7 @@
 ```js
 function mergeSort(arr) {  // 采用自上而下的递归方法
     var len = arr.length;
-    if(len < 2) {
+    if(len < 2) { //当分为一个元素时，所有最小子节点就是已经排好序的了！
         return arr;
     }
     var middle = Math.floor(len / 2),
@@ -56,7 +56,7 @@ function merge(left, right)
 
     while (left.length && right.length) {
         if (left[0] <= right[0]) {
-            result.push(left.shift());
+            result.push(left.shift());     //left.shift()返回left被删除的第一个元素！
         } else {
             result.push(right.shift());
         }
@@ -222,4 +222,4 @@ function merge($left, $right)
 
     return $result;
 }
-```
\ No newline at end of file
+```