save project

1.PY

+new_date=' '
+with open(r'C:\Users\Administrator\Desktop\book.txt\a.txt','r',encoding='utf-8') as a:
+    for i in a:
+        if '小强:12本' in i: 
+            i=i.replace('小强:12本','小强:11本')
+        if '小兰：12本' in i:
+            i=i.replace('小兰：12本','小兰：14本')
+        new_date += i
+
+with open(r'C:\Users\Administrator\Desktop\book.txt\a.txt','w',encoding='utf-8') as a:
+    a.write(new_date)   
+    
+with open(r'C:\Users\Administrator\Desktop\book.txt\a.txt','r',encoding='utf-8') as a:   
+    b=a.read()
+print(b)