save project

diy.py

@@ -9,17 +9,17 @@ file1.close()
 with open(r"C:\Users\huawei\Desktop\book.txt","a",encoding='utf-8')as file1:
 with open(r"C:\Users\huawei\Desktop\book.txt","a",encoding='utf-8')as file1:
     file1.write('李文2：9本\n')
     file1.write('李文2：9本\n')
     file1.write('张伟2：16本\n')
     file1.write('张伟2：16本\n')
-
+aaa=""
 with open(r"C:\Users\huawei\Desktop\book.txt","r",encoding='utf-8')as file1:
 with open(r"C:\Users\huawei\Desktop\book.txt","r",encoding='utf-8')as file1:
     for data in file1:
     for data in file1:
         if '李文2：9本\n' in data:
         if '李文2：9本\n' in data:
-            print("在")
+            data=data.replace('李文2：9本\n','李文2：10本\n')
+        aaa+=data
         if '张伟2：16本\n' in data:
         if '张伟2：16本\n' in data:
-            print("在")
-    
-
-
-
+            data=data.replace('张伟2：16本\n','张伟2：15本\n')
+        aaa+=data   
+with open(r"C:\Users\huawei\Desktop\book.txt","w",encoding='utf-8')as file1:
+    file1.write(aaa)