VB

在VB中调用DOS命令，如何得知DOS命令是否已经执行完毕 _____________________________________________ Set wshl = CreateObject("wscript.shell") wshl.Run "ping 9zp.com", 1, True 'true代表等待完成,1代表显示运行窗口 MsgBox "完成" ********** ...

Option Explicit '要求变量必须声明后才能使用 Private Declare Function URLDownloadToFile Lib "urlmon" Alias "URLDownloadToFileA" (ByVal pCaller As Long, ByVal szURL As String, ByVal szFileName As String, ByVal dwReserved As Long, ByVal lpfnCB As Lo ...