save project

diy1.py

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