save project

diy.py

 with open(r'/Users/mac/Desktop/test.txt','w',encoding='utf-8') as a:
 a.write('小兰:12本')
+new_date=''
+with open(r'/Users/mac/Desktop/test.txt','w',encoding='utf-8') as a:
+    for data in file1:
+        if '小兰：12本'in data:
+            data=data.replace('小兰:12本','小兰:111111111111111本')
+        new_data +=data
+print(new_data)
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