save project

1.py

+import time
+start_time=time.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)
+result=end_time-start_time
+print('总共耗时：',result)
\ No newline at end of file