auto save

diy.py

@@ -2,7 +2,13 @@
 # file1=open(r"C:\Users\EDZ\Desktop\test.txt",'w',encoding='utf-8')
 # file1.write('小兰：12本\n小丽：11本\n李文：9本\n张伟：16本\n')
 # file1.close()
-file1=open(r"C:\Users\EDZ\Desktop\test.txt",'a',encoding='utf-8')
-file1.write('小强：10本\n')
-file1.write('李明：15本\n')
-file1.close()
\ No newline at end of file
+# file1=open(r"C:\Users\EDZ\Desktop\test.txt",'a',encoding='utf-8')
+# file1.write('小强：10本\n')
+# file1.write('李明：15本\n')
+# file1.close()
+with open(r"C:\Users\EDZ\Desktop\test.txt",'r',encoding='utf-8') as file1:
+    for data in file1:
+        if '小兰：12本' in data:
+            print('数据在文件中')
+        if '小强：10本' in data:
+            print('数据在文件中')
\ No newline at end of file

text.py

+file1=open(r"C:\Users\EDZ\Desktop\test.txt","w",encoding='utf-8')
+file1.write('小兰：12本')
\ No newline at end of file