save project

diy1.py

-# 利用write()帮助悟空给诺依回信吧~
-import turtle
-pen=turtle.Pen()
-pen.write("你好\nnuoyi\nturtle真好用",font=("times",30,"normal"))
-pen.hideturtle()
-turtle.done()
\ No newline at end of file
+username="user1"
+password="QWER1234"
+def pa():
+    while True:
+        username1=input("请输入账户：")
+        password1=input("请输入密码：")
+        if username==username1 and password==password1:
+            print("密码正确")
+            break
+        if username!=username1:
+            print("账户不存在，请重新输入")
+            continue
+        if password!=password1:
+            print("密码错误，请重新输入")
+pa()
\ No newline at end of file