save project

bug.py

-a="q"
-b="123456"
+username = "python"
+userpassword = "123456"
+i=3
 while True:
-    name=input("请输入用户名:")
-    password=input("请输入密码:")
-    if name == a and b == password:
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i=i-1
+        if name == username and password == userpassword:
             print("登录成功!")
             break
-    elif name != a:
-        print("用户名不存在,请重新输入")
+        elif name != username:
+            print("用户名不存在,请重新输入!")
             continue
         else:
-        print("密码输入有误,请重新输入")
-print("欢迎来到贝尔编程")
\ No newline at end of file
+            print("密码输入有误,请重新输入!")
+    else:
+         print("账号被锁定") 
+         exit()  
+print("欢迎来到贝尔编程!")
\ No newline at end of file