save project

diy2.py

+username = "python"
+userpassword = "123456"
+while True:
+    if i>0
+        name = input("请输入python:")
+        password = input("请输入123456:")
+        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")
+        if password!=userpassword:
+            print("密码输入有误!请重新输入")
+    else:
+        print("你的账户已被锁定，请代身份证来我司解锁")
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