auto save

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
+for a in range(0,1000):
+    for b in range(0,1000):
+        list1.append(0)
+b= time.time()
+print("结束时间为:",b)