save project

diy2.py

+i = 3
+username = "python"
+userpassword = "114514 "
+while True:
+    if i>0:
+        name = input("请输入用户名")
+        password = input("请输入密码")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name != username:
+            print("请重新输入用户名")
+        if password != username:
+            print("请重新输入密码")  
+    else:
+        print("账号已被锁定")
+print("登录成功")
+
+