auto save

diy1.py

-list1 = []
-for a in range(0, 1000):
-    for b in range(0, 1000):
-        list1.insert(0, 0)
+import time
+
+start_time=time.time()
+list1=[]
\ No newline at end of file
+print("开始时间为:",start_time)
+for a in range(0,1000):
+    for b in range(0,1000):
+        list1.append(0)
+end_time=time.time()
+print("结束时间为:",end_time)
+resusult=end_time-start_time
+print("总共耗时:",resusult)

diy2.py

+alist=[12,15,20,17,9,13,8,6]
+
+n=len(alist)
+for i in range(0,n-1):
+    for j in range(0,n-1):
+        if alist[j]>alist[j+1]:
+            alist[j],alist[j+1]=alist[j+1],alist[j]
+    print(alist)