save project

diy2.py

-username = "python"
-userpassword = "123456"
-while True:
+i=3
+username="python"
+userpassword="123456"
+while True:    
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    if name!=username
+    if name!=username:
         print("用户名不存在，请重新输入！")
-    if userpassword!=username
-        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
+        continue
+    if password!=userpassword:
+        print("密码输入错误，请重新输入！")