save project

diy.py

@@ -5,10 +5,14 @@
 
 # with open("C:\\Users\\111\\Desktop\\file.txt","a",encoding="utf-8") as sue:
 #     sue.write("\n小强：12本\n李明：15本\n")
-
+str = ""
 with open("C:\\Users\\111\\Desktop\\file.txt","r",encoding="utf-8") as sue:
     for i in sue:
         if "小强：12本" in i:
-            print("小强在这里")
+            i = i.replace("小强：12本","小强：11本")
         if "小兰：12本" in i:
-            print("小兰在这里")
\ No newline at end of file
+            i = i.replace("小兰：12本","小兰：14本")
+        str += i
+
+with open("C:\\Users\\111\\Desktop\\file.txt","w",encoding="utf-8") as sue:
+    sue.write(str)
\ No newline at end of file