save project

diy1.py

 username="python"
 userpassword="123456"
-if name !=username:
-    print("名字错了，重写")
-if password !=userpassword:
-    print("密码错了，重写")
\ No newline at end of file
+while True:
+    name=input("账户名")
+    password=input("账户密码")
+    if name=username and password=userpassword:
+        print("输入正确")
+        break
+    if name !=username:
+        print("名字错了，重写")
+    if password !=userpassword:
+        print("密码错了，重写")
+print("欢迎来到贝尔编程")
\ No newline at end of file