save project

1.py/2.py/3.py

+import time
+a=[]
+s1=time.time()
+for i in range(1000):
+    a.insert(0,0)
+    #a.append(0)
+s2=time.time()
+print(s2-s1)
+
+a=[]
+s1=time.time()
+for i in range(1000):
+    #a.insert(0,0)
+    a.append(0)
+s2=time.time()
+print(s2-s1)
\ No newline at end of file

diy1.py

-list1 = []
-for a in range(0, 1000):
-    for b in range(0, 1000):
-        list1.insert(0, 0)
+a=[20,17,9,13,5,6]
+n=len(a)
+for i in range(n-1):
+    flag=1
\ No newline at end of file
+    for j in range(n-1-i):
+        if a[j] < a[j+1]:
+            c=a[j]
+            a[j]=a[j+1]
+            a[j+1]=c
+            flag=0
+    if flag==1:
+        break
+    else:
+        print("第",i+1,"轮的排序结果是：",a)            
+print("最终的排序结果是：",a)        
\ No newline at end of file