save project

diy.py

@@ -2,8 +2,13 @@
 with open(r'C:\\Users\EDY\Documents\lesson12-1\\book.txt','r',encoding='utf-8') as file1:
 with open(r'C:\\Users\EDY\Documents\lesson12-1\\book.txt','r',encoding='utf-8') as file1:
     for data in file1:
     for data in file1:
         if'小强:10本'in data:
         if'小强:10本'in data:
-            print('小强数据在文件中')
+            data=data.replace('小强：10本','小强：11本')
         if'小兰:12本'in data:
         if'小兰:12本'in data:
-            print('小兰数据在文件中')
-
+            data=data.replace('小兰：12','小兰14本')
+        new_data += data
 
 
+with open(r'C:\\Users\EDY\Documents\lesson12-1\\book.txt','w',encoding='utf-8') as file1:
+    file1.write(new_data)
+with open(r'C:\\Users\EDY\Documents\lesson12-1\\book.txt','r',encoding='utf-8') as file1:
+    a=file1.read()
+    print(a)