auto save

diy1.py

+import time
+start_time=time.time()
+print("开始时间为：", 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("结束时间为：", end_time)
+result=end_time-start_time
+print("时间差为：", result)
+