save project

diy1.py

+import time 
+start_time=time.time() #开始时间    
+
 list1 = []
 list1 = []
 for a in range(0, 1000):
 for a in range(0, 1000):
     for b in range(0, 1000):
     for b in range(0, 1000):
-        list1.insert(0, 0)
+        list1.extend([0])
\ No newline at end of file
+
+end_time=time.time() #结束时间
+
+hond_j=end_time - start_time
+print("耗时时间:",hond_j)
\ No newline at end of file