关于内存映射文件 与 浮点数组 ！(200分)

想高速将一个 二维数组 存入一文本文件,利用内存映射文件 技术实现！<br>格式如下:<br>a[1,1],a[1,2],a[1,3]<br>a[2,1],a[2,2],a[2,3]

建立内存内存映射文件 &nbsp;若成功返回一个 pointer 指针 p<br><br>然后, copymemory(p,@a,sizeof(a))<br><br>是更新生效.<br><br>就ok了

映射后把数据复制到映射文件空间就行了

能给个例子吗 ？很着急

hMapObj := OpenFileMapping(FILE_MAP_WRITE,{获取完全访问映射文件}<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;False,{不可继承的}<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;LPCTSTR(MappingFileName));{映射文件名字}<br>&nbsp; if hMapObj = 0 then<br>&nbsp; begin<br>&nbsp; &nbsp; ShowMessage('不能定位内存映射文件块!');<br>&nbsp; &nbsp; Halt;<br>&nbsp; end;<br><br>&nbsp; pShMem := MapViewOfFile(hMapObj,FILE_MAP_WRITE,0,0,0);<br>&nbsp; if pShMem = nil then<br>&nbsp; begin<br>&nbsp; &nbsp; ShowMessage('映射文件错误'+ IntToStr(GetLastError));<br>&nbsp; &nbsp; CloseHandle(hMapObj);<br>&nbsp; &nbsp; Halt;<br>&nbsp; end;<br><br>&nbsp; FillChar(pShMem^, SizeOf(TShareMem), 0);

测试不 成功 ，继续 高手帮忙。

那位大侠搞个 完整的 例子源码。不胜感激！！！

文件存完以后是乱码

沙发...帮顶..

rpwt

dengdaidengdai .xiexie