auto save

diy.py

 # 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
 # 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
 new_data=''
 new_data=''
-with open(r"C:\Users\Administrator\Desktop\diy.text",'r',encoding='utf-8') as file1:
-    a=file1.read()
-    print(a)
-    for data in file1:
+with open(r"C:\Users\Administrator\Desktop\diy.text",'r',encoding='utf-8') as file:
+    
+    for data in file:
         if '小强:12本' in data:
         if '小强:12本' in data:
             data=data.replace('小强:12本','小强:11本')
             data=data.replace('小强:12本','小强:11本')
-            # print('数据在文件中')
-        # if '小兰：12本' in file:
-        #     print('数据在文件中')
-            
-        new_data+=data
-with open(r"C:\Users\Administrator\Desktop\diy.text",'w',encoding='utf-8') as file1:        
-    file1.write(new_data)
+            print(data)
+        new_data=new_data+data
+        print(21)
+with open(r"C:\Users\Administrator\Desktop\diy.text",'w',encoding='utf-8') as file:        
+    file.write(new_data)
         
         
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