save project

diy.py

@@ -13,7 +13,24 @@
 #     file.write("小兰：12本\n")
 #     file.write("小兰：12本\n")
 #     file.write("小丽：11本\n")
 #     file.write("小丽：11本\n")
 
 
+# with open(r"D:\test.txt","r",encoding="utf-8") as file:
+#     for i in file:
+#         if "小兰：12本" in i:
+#             print("数据在文本中")
+new_date=""
 with open(r"D:\test.txt","r",encoding="utf-8") as file:
 with open(r"D:\test.txt","r",encoding="utf-8") as file:
     for i in file:
     for i in file:
         if "小兰：12本" in i:
         if "小兰：12本" in i:
-            print("数据在文本中")
+            i=i.replace("小兰：12本","小兰：13本")
\ No newline at end of file
+        # if "小丽：11本" in i:
+        #     i=i.replace("小丽：11本","小丽：14本")
+        new_date+=i
+
+with open(r"D:\test.txt","w",encoding="utf-8") as file:
+    file.write(new_date)
+with open(r"D:\test.txt","r",encoding="utf-8") as file:
+    qqq=file.read()
+    print(qqq)
+
+
+