save project

diy1.py

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