auto save

diy1.py

+#导入时间模块
+import time
+#定义开始时间
+start_time = time.time()
+#输出开始时间
+print("开始时间为:",start_time)
 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)
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+    print(a*b)
+#定义结束时间
+end_time = time.time()
+#输出结束时间
+print('结束时间为:',end_time)
+#计算总耗时
+result = end_time-start_time
+#输出总耗时
+print('总耗时为:',result)
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