auto save

1.py

-import time
+alist=[10,4,20,14]
 
-start_time = time.time()    # 开始时间
-print("开始时间为：", start_time)
+n=len(alist)
 
-list1 = []
-for a in range(0, 1000):
-    for b in range(0, 1000):
-        list1.insert(0, 0)
-end_time = time.time()      # 结束时间
-print("结束时间为：", end_time)
+for i in range(0,n-1):
+    for j in range(0,n-1):
+          # 比较大小并交换
+        if alist[j] < alist[j + 1]:
+            alist[j], alist[j + 1] = alist[j + 1], alist[j]
 
-result = end_time - start_time
-print("总共耗时：", result)
\ No newline at end of file
+print(alist)