auto save

diy2.py

 username = "python"
 userpassword = "123456"
-a=3
 while True:
-    if a>0:
-        name = input("请输入用户名:")
-        password = input("请输入密码:")
-        if name ==username and password == userpassword:
-            print("登录成功!")
-            continue
-        elif name !=username:
-            print("用户名不存在")
-        else :
-            print("密码错误")
-        a-=1
-    else:
-        print("你的账户已被锁定，请带身份证来我司解锁")
-        exit()
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name ==username and password == userpassword:
+        print("登录成功!")
+        continue
+    elif name !=username:
+        print("用户名不存在")
+    else :
+        print("密码错误")
 print("欢迎来到贝尔编程!")
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