save project

diy.py

@@ -7,3 +7,7 @@ filel.close()
 with open(r'C:\Users\Administrator\Desktop\tese.txt','a',encodong='utf-8') as filel:
 with open(r'C:\Users\Administrator\Desktop\tese.txt','a',encodong='utf-8') as filel:
     filel.write('12\n')
     filel.write('12\n')
     filel.close()
     filel.close()
+with open(r'C:\Users\Administrator\Desktop\tese.txt','r',encodong='utf-8') as filel:
+    for data in filel:
+        if '12'in data:
+            print('数据在文件中')
\ No newline at end of file