auto save

diy1.py

-list1 = []
+import time
+start=time.time()
+print("开始",start)
+SUM=0
 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)
+        SUM+=1
\ No newline at end of file
+end=time.time()
+print("结束",start)
+d=end-start
+print("总时间",d)
+print("SUM=",SUM)
\ No newline at end of file