save project

diy.py

@@ -2,4 +2,9 @@ filre=open(r'C:\Users\Administartor.SC2206-2023UCRO\Desktop\test.txt','w',encodi
 filter.write('小兰：12本')
 filter.close()
 with open((r'C:\Users\Administartor.SC2206-2023UCRO\Desktop\test.txt','a',encoding='utf-8')as file：
-    file.write("小强:13本")
\ No newline at end of file
+    file.write("小强:13本")
+with open((r'C:\Users\Administartor.SC2206-2023UCRO\Desktop\test.txt','r',encoding='utf-8')as file：
+     for data in file:
+         if "小强：13本"in data:
+             print("数据在")
+         
\ No newline at end of file