auto save

diy1.py

 import time 
 
 start_time = time.time()
-print("开始时间为：",start_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)
-end_time =time.time()
-print("结束时间为:",end_time)
+end_time = time.time()
+print("结束时间为:", end_time)
 
 result = end_time - start_time
 print("总共耗时：", result)
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