save project

a.py

+print(6+8/2)
\ No newline at end of file

diy4.py

+new_data = ''
+with open(r'C:\\Users\\PC\\Desktop\\1\\book.txt','r',encoding='utf-8') as file:
+    for data in file:
+        if '小强：10本' in data:
+            data = data.replace('小强：10本','小强：11本')
+        if '小兰：12本' in data:
+            data = data.replace('小兰：12本','小兰：14本')
+    new_data += data
+with open(r'C:\\Users\\PC\\Desktop\1\\book.txt','w',encoding='utf-8') as file:
+    file.write(new_data)
+with open(r'C:\\Users\PC\\Desktop\\1\\book.txt','r',encoding='utf-8') as file:
+    a=file.read()
+    print(a)
\ No newline at end of file