save project

diy2.py

+new_data=0
 with open(r'C:\Users\qq\Desktop\test.txt','r',encoding='utf-8')as diy:
 with open(r'C:\Users\qq\Desktop\test.txt','r',encoding='utf-8')as diy:
     for data in diy:
     for data in diy:
         if "小兰：12本" in data:
         if "小兰：12本" in data:
-            print("在文件中")
+            data=data.replace("小兰：16本","小丽：11本")
+        new_data=data
+
+with open(r'C:\Users\qq\Desktop\test.txt','w',encoding='utf-8')as diy:
+    diy.write(new_data)
+
+