diff --git a/day1/README.md b/day1/README.md
index e0180ed..905eaad 100644
--- a/day1/README.md
+++ b/day1/README.md
@@ -9,4 +9,5 @@
 ## 注释
 ### #
 ### ‘’‘
-## != 不等于
\ No newline at end of file
+## != 不等于
+###
\ No newline at end of file
diff --git a/day1/str.py b/day1/str.py
index c21e173..ac00453 100644
--- a/day1/str.py
+++ b/day1/str.py
@@ -1,2 +1,3 @@
 a = 'sb114514'
-print(a[:2].isalpha())
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+# print(a[:2].isalpha())
+print(a[7:8]+a[6:7]+a[5:6]+a[4:5]+a[3:4]+a[2:3]+a[1:2]+a[0:1])
\ No newline at end of file