diff --git a/README.md b/README.md
index dbcad19..1eab29d 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 + [8 String to Integer (atoi)(溢出检测）](algorithms/StringtoInteger)
 + [21 Merge Two Sorted Lists](algorithms/MergeTwoSortedLists)
 + [31 Next Permutation](algorithms/NextPermutation)
-+ [60 Permutation Sequence](algorithms/PermutationSequence)
++ [60 Permutation Sequence(康托展开)](algorithms/PermutationSequence)
 + [65 Valid Number(细节题,状态机)](algorithms/ValidNumber)
 + [191 Number of 1 Bits(位运算)](algorithms/Numberof1Bits)
 + [198 House Robber(DP)](algorithms/HouseRobber)