save project

diy1.py

+import time
+start_time = time.time()
+print("开始的时间为"+str(start_time))
 list1 = []
 list1 = []
 for a in range(0, 1000):
 for a in range(0, 1000):
     for b in range(0, 1000):
     for b in range(0, 1000):
-        list1.insert(0, 0)
+        list1.append(0)
\ No newline at end of file
+end_time = time.time()
+print("结束的时间"+str(end_time))
+time1=end_time-start_time
+print(time1)
+