save project

diy2.py

+hdqhdqywh=5
+username = "648"
+userpassword = "olso648"
+while True:
+    if hdqhdqywh!=0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        else:
+            hdqhdqywh-=1
+            if name==username and password!=userpassword:
+                print("账号错误")
+            else:
+                if name!=username and password==userpassword:
+                    print("密码错误")
+                else:
+                    if name!=username and password!=userpassword:
+                        print("你“输”对了。congratulation。")
+    else:
+        print("你账号被锁了，充648以示尊重。")
+        exit()
+print("欢迎来到648编程!")
+