save project

diy.py

@@ -4,3 +4,6 @@ file1.write('曹狗蛋、9999999999999999999999999999999999999999999999999999999
 file1.close()
 with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8') as file1:
     file1.write('曹狗蛋、9999999999999999999999999999999999999999999999999999999999999999999999999999999999本\n')
+    for data in file1:
+        if '曹狗蛋、9999999999999999999999999999999999999999999999999999999999999999999999999999999999本' in data:
+            print('数据在文件中')