auto save

diy1.py

+import time
 list1 = []
+start_time = time.time()
+print('start_time = ',start_time)
 for a in range(0, 1000):
+    
+    
     for b in range(0, 1000):
-        list1.insert(0, 0)
\ No newline at end of file
+        
+        
+        
+        end_time = time.time()
+        list1.insert(0,0)
+        
+        
+print('end_time = ',end_time)
+print('all_time = ',end_time-start_time)