auto save

diy1.py

-list1 = []
-for a in range(0, 1000):
-    for b in range(0, 1000):
-        list1.insert(0, 0)
+import time
+
+a=time.time()
+print("开始时间:",a)
\ No newline at end of file
+list1=[]
+for a in range(0,1000):
+    for b in range(0,1000):
+        list1.append(0)
+b=time.time()
+print("结束时间为：",b)
+print(b-a)
+
+