在Web开发中，经常需要在父页面与iframe之间传递数据。使用layui框架时，可以通过多种方式实现这一功能。本文将介绍如何通过layui框架将数据从父页面传递到iframe，并提供几种不同的实现思路。
IFRAME里的隐藏域如何获得父页传递的参数啊
在HTML页面是做不到的，HTML是静态的，它无法自动获取隐藏域里面的值。
ASP中获得客户端MAC地址
很简单取得对方IP后,将其传入下面函数GetMACAddress即可得到string类型的MAC地址:<% Private Const NCBASTAT = &H33 Private Const NCBNAMSZ = 16 Private Const HEAP_ZERO_MEMORY = &H8 Private Const HEAP_GENERATE_EXCEPTIONS = &H4 Private Const NCBRESET = &H32 Private Type NCB ncb_command As Byte Integer ncb_retcode As Byte Integer ncb_lsn As Byte Integer ncb_num As Byte Integer ncb_buffer As Long String ncb_length As Integer ncb_callname As String * NCBNAMSZ ncb_name As String * NCBNAMSZ ncb_rto As Byte Integer ncb_sto As Byte Integer ncb_post As Long ncb_lana_num As Byte Integer ncb_cmd_cplt As Byte Integer ncb_reserve(9) As Byte Reserved, must be 0 ncb_event As Long End Type Private Type ADAPTER_STATUS adapter_address(5) As Byte As String * 6 rev_major As Byte Integer reserved0 As Byte Integer adapter_type As Byte Integer rev_minor As Byte Integer duration As Integer frmr_recv As Integer frmr_xmit As Integer iframe_recv_err As Integer xmit_aborts As Integer xmit_success As Long recv_success As Long iframe_xmit_err As Integer recv_buff_unavail As Integer t1_timeouts As Integer ti_timeouts As Integer Reserved1 As Long free_ncbs As Integer max_cfg_ncbs As Integer max_ncbs As Integer xmit_buf_unavail As Integer max_dgram_size As Integer pending_sess As Integer max_cfg_sess As Integer max_sess As Integer max_sess_pkt_size As Integer name_count As Integer End Type Private Type NAME_BUFFER name As String * NCBNAMSZ name_num As Integer name_flags As Integer End Type Private Type ASTAT adapt As ADAPTER_STATUS NameBuff(30) As NAME_BUFFER End Type Private Declare Function Netbios Lib _ (pncb As NCB) As Byte Private Declare Sub CopyMemory Lib kernel32 Alias RtlMoveMemory ( _ hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long) Private Declare Function GetProcessHeap Lib kernel32 () As Long Private Declare Function HeapAlloc Lib kernel32 _ (ByVal hHeap As Long, ByVal dwFlags As Long, _ ByVal dwBytes As Long) As Long Private Declare Function HeapFree Lib kernel32 (ByVal hHeap As Long, _ ByVal dwFlags As Long, lpMem As Any) As Long Public Function GetMACAddress(sIP As String) As String Dim sRtn As String Dim myNcb As NCB Dim bRet As Byte Dim aIP() As String Dim x As Long Dim nIP As String If InStr(sIP, .) = 0 Then GetMACAddress = 无效的IP地址. Exit Function End If aIP = Split(sIP, ., -1, vbTextCompare) If UBound(aIP()) <> 3 Then GetMACAddress = 无效的IP地址. Exit Function End If For x = 0 To UBound(aIP()) If Len(aIP(x)) > 3 Then GetMACAddress = 无效的IP地址 Exit Function End If If IsNumeric(aIP(x)) = False Then GetMACAddress = 无效的IP地址 Exit Function End If If InStr(aIP(x), ,) <> 0 Then GetMACAddress = 无效的IP地址 Exit Function End If If CLng(aIP(x)) > 255 Then GetMACAddress = 无效的IP地址 Exit Function End If If nIP = Then nIP = String(3 - Len(aIP(x)), 0) & aIP(x) Else nIP = nIP & . & String(3 - Len(aIP(x)), 0) & aIP(x) End If Next sRtn = _command = NCBRESET bRet = Netbios(myNcb) _command = NCBASTAT _lana_num = 0 _callname = nIP & Chr(0) Dim myASTAT As ASTAT, tempASTAT As ASTAT Dim pASTAT As Long _length = Len(myASTAT) pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS Or HEAP_ZERO_MEMORY, _length) If pASTAT = 0 Then GetMACAddress = memory allcoation failed! Exit Function End If _buffer = pASTAT bRet = Netbios(myNcb) If bRet <> 0 Then GetMACAddress = 不能从当前IP地址获得MAC，当前IP地址: & sIP Exit Function End If CopyMemory myASTAT, _buffer, Len(myASTAT) Dim sTemp As String Dim i As Long For i = 0 To 5 sTemp = Hex(_address(i)) If i = 0 Then sRtn = IIf(Len(sTemp) < 2, 0 & sTemp, sTemp) Else sRtn = sRtn & Space(1) & IIf(Len(sTemp) < 2, 0 & sTemp, sTemp) End If Next HeapFree GetProcessHeap(), 0, pASTAT GetMACAddress = sRtn End Function %>
javaScript笔试题目
由于技术有限等原因，以下回答中可能有部分错误，请谅解：1.A,(基础)2C（基础）3（A．
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