save project

a.py

+import time
+a = time.time()
+print(a)
\ No newline at end of file

diy1.py

+import time
+start_time = time.time()
 list1 = []
+print("开始时间为：", start_time)
 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)
+end_time = time.time()
+prinr("结束时间为：", end_time)
+recult = end_time - start_time
+print("总共耗时：", recult)