auto save

diy1.py

-import time
-start_time=time.time()
-print('开始时间：',start_time)
-list1 = []
-for a in range(0, 1000):
-    for b in range(0, 1000):
-        list1.append(0)
-end_time=time.time()
-print(a,b)
-print('结束时间：',end_time)
-result=end_time-start_time
-print('用时：',result)
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+a = '速度{0}激{1}'
+a = a.format('与','情')
+print(a)
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