save project

diy1.py

@@ -4,7 +4,7 @@ list2=[0,0,0,0,0,0,0,0,0,0]
 start_time=time.time()
 print("开始时间为：",start_time)
 for a in range(100000):
-        list1.extend(list2)
+    list1.extend(list2)
 end_time=time.time()
 print("结束时间为：",end_time)