save project

diy1.py

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