save project

diy2.py

-with open('C:\\Users\\Public\\Desktop\\lm.txt','a',encoding='utf-8') as file1:
+with open('C:\\Users\\Public\\Desktop\\lm.txt','r',encoding='utf-8') as file1:
     for data in file1:
     for data in file1:
         if'小兰：20' in data：
         if'小兰：20' in data：
             print('sb在文件中')
             print('sb在文件中')