save project

a.py

 with open(r'c:\cm\desketop\dook.txt','r',encoding='utf-8') as file:
         for data in file1:
             if'小强：10本'in data:
-                pnnt('强存在文件中')
+                pnnt(小:10本'，'小强:12本')
             if'小兰：12本'in data:
-                pnnt('兰存在文件中')
\ No newline at end of file
+                pnnt('小兰:12本'，'小兰:14本')
+
+with open(r'c:\cm\desketop\dook.txt','r',encoding='utf-8') as file1:
+    file1.wirte(new_data)
+
+with open(r'c:\cm\desketop\dook.txt','r',encoding='utf-8') as file1:
+    a=file1.read()
+    print(a)
\ No newline at end of file