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diy1.py

@@ -4,7 +4,7 @@ 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)
+        list1.extend([0])
 end_time=time.time()
 print("结束时间为：",end_time)
 print("用时：",end_time-start_time)