auto save

diy2.py

+username="python"
+userpassword="123456"
+i=6
+while True:
+    if i>0:
+        name=input("请输入用户账号：")
+        password=input("请输入用户密码：")
+        i=i-1
+        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！")
+            print("温馨提示：你还有"+ste(i)+"次机会！")
+            continue
+        if password!=userpassword:
+            print("密码输入错误，请重新输入！")
+            print("温馨提示：你还有"+ste(i)+"次机会！")
+    else:
+        print("账号已被锁定，请带身份证到我司解锁")
+        exit()
+print("欢迎来到贝尔编程")
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