save project

www.py

+username="gg"
+userpassword="111111"
+while True:
+    name=input("请输入用户名")
+    password=input("请输入密码")
+    if name==username and password==userpassword:
+        print("登陆成功")
+        break
+    print("用户名和密码错误，请重新输入")
+print("welcone to bellcode")
\ No newline at end of file