auto save

diy1.py

+import time
+start_time = time.time() #开始时间
+print('开始时间是：',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.insert(-1, 0)
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+end_time = time.time()  #结束的时间
+print('结束的时间是：',end_time)
+
+result = end_time-start_time  #时间差
+print('程序运行的时间是:',result)
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