save project

diy1.py

+import time
+start = time.time()
+print("开始的时间：",start) 
 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(-1, 0)
+end = time.time()
+print("结束的时间：",end)
+result = end - start
+print("经过的时间：",result)
\ No newline at end of file