save project

1.py

+username='llllllllllllllllllllllllllllllllllllllllllllllllll'
+userpassword='1234567890qwertyuiopo'
+while True:
+    name=input("账户:")
+    password=input("密码:")
+    if name==username and password==userpassword:
+        print("登录成功!")
+        break
+    if name !=username:
+        print("用户名不存在！请重新输入")
+    if password !=userpassword:
+        print("密码错误！请重新输入")
+print("欢迎来到贝尔编程！")