auto save

1.py

+i
+a = "曹哲源"
+b = "czy20080901"
+while True:
+    n = input("请输入用户名：")
+    s = input("请输入密码：")
+    if n  == a and s == b:
+        print("登录成功")
+        break
+    if n != a:
+        print("用户名错误,请重新输入！")
+        break
+    if s!= b:
+        print("密码错误")
+        break
+
+    
\ No newline at end of file

5.py

 i=3
-username = "python"
-userpassword = "123456"
-while True:
-    if i>0:
-        name = input("请输入用户名:")
-        password = input("请输入密码:")
-        i-=1
-        if name == username and password == userpassword:
-            print("登录成功!")
-            break   
-        if name != username:
-            print("您输入的用户名错误请重新输入")
-            continue
-        if password != userpassword:
-            print("您输入的密码错误请重新输入")
+uif name != usurname:
     else:
         print("账户已锁定")
         exit()