save project

diy.py

@@ -6,10 +6,17 @@
 #file1.close()        
 #file1.close()        
 #with open(r'C:\Users\makcoo03\Desktop\book.txt','a',encoding='utf-8') as file1:
 #with open(r'C:\Users\makcoo03\Desktop\book.txt','a',encoding='utf-8') as file1:
 #    file1.write('小强:12本\n')
 #    file1.write('小强:12本\n')
-#    file1.write('李明:9本\n')  
+#    file1.write('李明:9本\n') 
+new_date='' 
 with open(r'C:\Users\makcoo03\Desktop\book.txt','r',encoding='utf-8') as file1:
 with open(r'C:\Users\makcoo03\Desktop\book.txt','r',encoding='utf-8') as file1:
-    for date in file1:
+   for date in file1:
         if '小强:10本' in date:
         if '小强:10本' in date:
-            print('小强数据在文件中')
+            date=date.replace('小兰:12本','小兰:14本')
         if '小兰:12本' in date:
         if '小兰:12本' in date:
-            print('小兰数据在文件中')
+            date=date.replace('小强:10本','小强:11本')
\ No newline at end of file
+        new_date +=date
+with open(r'C:\Users\makcoo03\Desktop\book.txt','w',encoding='utf-8') as file1:
+    file1.write(new_date)
+with open(r'C:\Users\makcoo03\Desktop\book.txt','r',encoding='utf-8') as file1:
+    a=file1.read()
+    print(a)
\ No newline at end of file