﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>C++博客-fox-home</title><link>http://www.cppblog.com/lon-priest/</link><description /><language>zh-cn</language><lastBuildDate>Tue, 09 Jun 2026 20:25:27 GMT</lastBuildDate><pubDate>Tue, 09 Jun 2026 20:25:27 GMT</pubDate><ttl>60</ttl><item><title>关于main函数参数的疑问</title><link>http://www.cppblog.com/lon-priest/archive/2009/04/15/80003.html</link><dc:creator>fox-shadow</dc:creator><author>fox-shadow</author><pubDate>Wed, 15 Apr 2009 06:33:00 GMT</pubDate><guid>http://www.cppblog.com/lon-priest/archive/2009/04/15/80003.html</guid><wfw:comment>http://www.cppblog.com/lon-priest/comments/80003.html</wfw:comment><comments>http://www.cppblog.com/lon-priest/archive/2009/04/15/80003.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.cppblog.com/lon-priest/comments/commentRss/80003.html</wfw:commentRss><trackback:ping>http://www.cppblog.com/lon-priest/services/trackbacks/80003.html</trackback:ping><description><![CDATA[<div># include &lt;stdio.h></div><div># include &lt;stdlib.h></div><div><br></div><div>void main(int argc, char *argv[])</div><div>{</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>FILE *fp;</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">	</span>if(argc!=3)</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>{</div><div><span class="Apple-tab-span" style="white-space:pre">		</span>printf("缺少字节位置，无法进行操作。\n");</div><div><span class="Apple-tab-span" style="white-space:pre">		</span>exit(0);</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">	</span>if((fp=fopen(argv[1], "rb"))==NULL)</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>{</div><div><span class="Apple-tab-span" style="white-space:pre">		</span>printf("无法打开文件。\n");</div><div><span class="Apple-tab-span" style="white-space:pre">		</span>exit(0);</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">	</span>if(fseek(fp, atol(argv[2]), 0))</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>{</div><div><span class="Apple-tab-span" style="white-space:pre">		</span>printf("寻找出现错误。\n");</div><div><span class="Apple-tab-span" style="white-space:pre">		</span>exit(0);</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">	</span>printf("在%ld处的字符是%c。\n", atol(argv[2]), getc(fp));</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>fclose(fp);</div><div>}</div><div>这个文件是有C语言写的</div><div>当运行后总是输出&#8220;缺少字节位置，无法进行操作&#8221;。我是在tc3.0的dos shell 中运行它的。</div><div>那位帮帮忙找到哪出问题了，谢谢&#183;&#183;&#183;</div>
<img src ="http://www.cppblog.com/lon-priest/aggbug/80003.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cppblog.com/lon-priest/" target="_blank">fox-shadow</a> 2009-04-15 14:33 <a href="http://www.cppblog.com/lon-priest/archive/2009/04/15/80003.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>