auto save

diy2.py

+i=3
+ss = "wssb"
+a = "54188"
+while True:
+    if i>0:
+        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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