save project

diy1.py

+import time
+
+a=time.time()
+print("开始时间"，3)
 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.insert(0, 0)
+b = time.time()
+print("结束时间",b)
+
+print("共耗时",a-b,"秒")
\ No newline at end of file