save project

diy1.py

+import time
+
+start_time=time.time()
+print("开始时间"+str(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'+str(end_time))
+
+print(end_time-start_time)
\ No newline at end of file