auto save

SB.py

+import time
+
+start_time = time.time()
+print("开始时间为：",start_time)
+
+list1 = []
+for a in range(0,100):
+    for b in range(0,100):
+        list1insert(0,0)
+end_time = time_time()
+
+reult = end_time - start_time
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