DELPHI 调DLL，VB(PB)转DELPHI，哪位大侠帮我转一下？谢谢！ ( 积分: 100 )

VB中可以这样调：
Private Declare Function Ch Lib "./dll/dll.dll" (ByVal playstr As String) As Integer

PB中可以这样调：
function int Ch(string playstr) library "dll/dll.dll"

哪位大侠告诉我一下 DELPHI中该怎么调？

function ch(playstr :string):integer external "dll/dll.dll"