auto save

diy.py

@@ -2,5 +2,8 @@
 #a=open(r"C:\Users\maku\Desktop\不帅不叫杨哥.txt",'w',encoding='utf-8')
 #a.write('小兰：12本,小丽：11本,李文：9本,张伟：16本')
 #a.close()
-with open(r"C:\Users\maku\Desktop\不帅不叫杨哥.txt",'a',encoding='utf-8') as a:
-    a.write('小兰:12本\n小丽:11\n本李文:9本\n张伟:16本\n杨哥:999本')
+with open(r"C:\Users\maku\Desktop\不帅不叫杨哥.txt",'r',encoding='utf-8') as a:
+    for i in a:
+        if '杨哥:999本' in i:
+            print('数据在文件里')
+