save project

diy.py

@@ -12,4 +12,5 @@ with open(r"C:\Users\Administrator\Documents\lesson12-1\diy.txt","p".encoding="u
         if "李文：9本" in data:
         if "李文：9本" in data:
             print("niubi")
             print("niubi")
         else:
         else:
-            print("sd")
+            print("sd")
\ No newline at end of file
+print(str.replace("9","8"))
\ No newline at end of file