auto save

diy.py

@@ -3,5 +3,7 @@ with open(r'C:\Users\学生账户\Desktop\test.txt','w',encoding='UTF-8') as fil
     file.write('小兰：12本')
     file.write('小兰：12本')
 with open(r'C:\Users\学生账户\Desktop\test.txt','r',encoding='UTF-8') as file:
 with open(r'C:\Users\学生账户\Desktop\test.txt','r',encoding='UTF-8') as file:
     for i in file:
     for i in file:
-        if "小强：10" in file:
+        if "小强：10" in i:
             print("在文件夹里")
             print("在文件夹里")
+        else:
+            print("不在")
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