save project

diy1.py

+import time
+
+start_time = time.time()    #开始时间
 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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+
+end_time = time.time()      #结束时间
+sj = end_time - start_time
+print("总共用时" + str(sj) + "秒")
\ No newline at end of file