save project

diy.py

@@ -8,4 +8,8 @@ file.close()
 with open(r'C:\Users\Administrator\Desktop')as file:
 with open(r'C:\Users\Administrator\Desktop')as file:
      file.write('小兰：12本')    
      file.write('小兰：12本')    
     file.write('小丽：11本')
     file.write('小丽：11本')
-    file.write('李文：9本')
+    file.write('李文：9本')
\ No newline at end of file
+with open(r'C:\Users\Administrator\Desktop')as file:
+    for data in file:
+        if'小强:10本'in data:
+            print('数据在文件中')
\ No newline at end of file