auto save

diy2.py

-
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-i=3
 while True:
 while True:
     name = input("请输入用户名:")
     name = input("请输入用户名:")
     password = input("请输入密码:")
     password = input("请输入密码:")
-    if i>0   
-        if name == username and password == userpassword:
-            print("登录成功!")
-            break
-            if username!=name :
-                    print("账号错误!请重新输入")
-                if password!= userpassword:
-                    print("密码错误!请重新输入")
+    if name == username and password == userpassword:
+        print("登录成功!")
+        break
+        if username!=name :
+             print("账号错误!请重新输入")
+        if password!= userpassword:
+            print("密码错误!请重新输入")
+
     print("用户名和密码错误!请重新输入")
     print("用户名和密码错误!请重新输入")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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