auto save

a.py

+def dd(d):
+    for i in range(0,len(d)-1):
+        for j in range(i+1,len(d)):
+            if d[i]<d[j]:
+                d[i],d[j]=d[j],d[i]
+    b=len(d)-1
+    d[b]=d[b]+1
+    print(d)
+dd([])     
\ No newline at end of file

b.py/ab.py

+while True:
+    x=input("x=")
+    a=len(x)
+    b=a//2
+    for i in range(b):
+        if x[i]==x[a-i-1]:
+            c=1
+        else:
+            c=0
+    if c==1:
+        print("true")
+    else:
+        print("false")
\ No newline at end of file

diy2.py

-username = "python"
-userpassword = "123456"
 while True:
 while True:
-    if i>0:
-        name = input("请输入用户名:")
-        password = input("请输入密码:")
-        if name != username:
-            print("重输")
-        elif password != userpassword:
-            print("重输")
-        else name == username and password == userpassword:
-            break
-            print("登录成功!")
-        print("用户名和密码错误!请重新输入")
+    x=input("x=")
+    a=len(x)
+    b=a//2
+    for i in range(b):
+        if x[i]==x[a-i-1]:
+            c=1
+        else:
+            c=0
+    if c==1:
+        print("true")
     else:
     else:
-        exit()  
-print("欢迎来到贝尔编程!")
+        print("false")
+
+
+def dd(d):
+    for i in range(0,len(d)-1):
+        for j in range(i+1,len(d)):
+            if d[i]<d[j]:
+                d[i],d[j]=d[j],d[i]
+    b=len(d)-1
+    d[b]=d[b]+1
+    print(d)
+dd([1,5,9,3,6])     
\ No newline at end of file