save project

diy1.py

+import time
+sb=time.time()
+print("开始时间为：",sb)
+
 list1 = []
 for a in range(0, 1000):
     for b in range(0, 1000):   
         list1.insert(0, 0)
+sb1=time.time()
+print("结束时间为：",sb1)
+sb2 = sb1-sb
+print("总耗时：",sb2)
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