哪位大佬可以帮我简化一下

replace dlret = -0.3 if dlret == 0 & dlstcd == 500 |
dlret == 0 & dlstcd == 520 |dlret == 0 & dlstcd == 551 |
dlret == 0 & dlstcd == 552 |dlret == 0 & dlstcd == 553 |
dlret == 0 & dlstcd == 554 |dlret == 0 & dlstcd == 555 |
dlret == 0 & dlstcd == 556 |dlret == 0 & dlstcd == 557 |
dlret == 0 & dlstcd == 558 |dlret == 0 & dlstcd == 559 |
dlret == 0 & dlstcd == 560 |dlret == 0 & dlstcd == 561 |
dlret == 0 & dlstcd == 562 |dlret == 0 & dlstcd == 563 |
dlret == 0 & dlstcd == 564 |dlret == 0 & dlstcd == 565 |
dlret == 0 & dlstcd == 566 |dlret == 0 & dlstcd == 567 |
dlret == 0 & dlstcd == 568 |dlret == 0 & dlstcd == 569 |
dlret == 0 & dlstcd == 570 |dlret == 0 & dlstcd == 571 |
dlret == 0 & dlstcd == 572 |dlret == 0 & dlstcd == 573 |
dlret == 0 & dlstcd == 574 |dlret == 0 & dlstcd == 580 |
dlret == 0 & dlstcd == 584