save project

bug.py

-a="py"
+a="q"
 b="123456"
 b="123456"
-name=input("用户名:")
-password=input("密码:")
-if name == a and b == password:
-    print("正确")
+while True:
+    name=input("请输入用户名:")
+    password=input("请输入密码:")
+    if name==a and b==userpassword:
\ No newline at end of file
+        print("登录成功!")
+        break
+    elif name = username:
+        print("用户名不存在,请重新输入")
+    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