diff --git a/problems/0131.分割回文串.md b/problems/0131.分割回文串.md
index 3a3c2d73..8e180ec8 100644
--- a/problems/0131.分割回文串.md
+++ b/problems/0131.分割回文串.md
@@ -494,15 +494,15 @@ var partition = function(s) {
     const res = [], path = [], len = s.length;
     backtracking(0);
     return res;
-    function backtracking(i) {
-        if(i >= len) {
+    function backtracking(startIndex) {
+        if(startIndex >= len) {
             res.push(Array.from(path));
             return;
         }
-        for(let j = i; j < len; j++) {
-            if(!isPalindrome(s, i, j)) continue;
-            path.push(s.slice(i, j + 1));
-            backtracking(j + 1);
+        for(let i = startIndex; i < len; i++) {
+            if(!isPalindrome(s, startIndex, i)) continue;
+            path.push(s.slice(startIndex, i + 1));
+            backtracking(i + 1);
             path.pop();
         }
     }