auto save

diy1.py

+#time时间模块sleep()\time()返回的值是秒，从1970-0-0-0
+from time import *
+start_time=time()#初始时间
 list1 = []
 list1 = []
-for a in range(0, 1000):
-    for b in range(0, 1000):
-        list1.insert(0, 0)
+for a in range(0, 1000000):
+    list1.append(0)
+end_time=time()
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+print("时间是",end_time-start_time)
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diy2.py

+alist=[12,13,2,3,5,7,1,6,44,4,23,56]
+#冒泡排序
+#轮数
+n=len(alist)-1
+#每一轮
+for i in range(n):
+    #每一轮比较的次数
+    for j in range(n):
+        #逻辑判断--->>从小到大
+        if alist[j]>alist[j+1]:
+            #变量互换
+            alist[j],alist[j+1]=alist[j+1],alist[j]
+print(alist)
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