subject_19857.htm

来自「一些关于vc的问答」· HTM 代码 · 共 18 行

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序号：19857 发表者：水兵 发表日期：2002-10-31 21:55:41
<br>主题：文本文件怎么一行行读去数据？
<br>内容：文件内容象：<BR>12456<BR>45673<BR>234<BR>13233333<BR>34<BR>3333<BR>
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回复者：*** 回复日期：2002-10-31 23:20:03
<br>内容：CStdioFile::ReadString()
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<font color=red>答案被接受</font><br>回复者：徐景周 回复日期：2002-11-01 09:38:49
<br>内容：可用CStdioFile，如：(其中WriteString为写入一行，ReadString为读取一行文本)<BR><BR>CStdioFile dataStore;<BR><BR> if (file)<BR> {<BR>&nbsp;&nbsp;&nbsp;&nbsp;CString&nbsp;&nbsp;somecode;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//也可采用LPTSTR类型，将不会删除文本中的\n回车符<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;BOOL bIsOk = dataStore.Open(strPath+"\\"+Filename,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CFile::modeCreate <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| CFile::modeWrite <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| CFile::shareDenyWrite <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| CFile::typeText);<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (!bIsOk)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return FALSE;<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;// 读写网页文件，直到为空<BR>&nbsp;&nbsp;&nbsp;&nbsp;while (file-&gt;ReadString(somecode) != NULL) //如果采用LPTSTR类型，读取最大个数nMax置0，使它遇空字符时结束<BR>&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dataStore.WriteString(somecode);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dataStore.WriteString("\n");&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //如果somecode采用LPTSTR类型,可不用此句<BR>&nbsp;&nbsp;&nbsp;&nbsp;}<BR>}
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