auto save

diy1.py

+import time
+star_time = time.time()
+print("开始的时间为",star_time)
 list1 = []
 list1 = []
-for a in range(0, 1000):
+for a in range(0, 100):
     for b in range(0, 1000):
     for b in range(0, 1000):
         list1.insert(0, 0)
         list1.insert(0, 0)
+end_time = time.time()       
+print("结束的时间为",end_time)
+alltime = end_time - star_time
+print("总耗时",alltime)
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