save project

diy2.py

+ss = "wssb"
+a = "54188"
+while True:
+    name = input("请输入用户名:")
+    ssr = input("请输入密码:")
+    if name == ss and ssr == a:
+        print("登录成功!")
+        break
+    if name != ss:
+        print("用户名不存在！")
+        continue
+    if ssr != a:
+        print("密码错误！")
+print("欢迎来到贝尔编程!")
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