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<div class="codetitle"><a style="CURSOR: pointer" data="2155" class="copybut" id="copybut2155" onclick="doCopy('code2155')"> 代码如下:<div class="codebody" id="code2155">
function chineseFirst($str)
{ $str= iconv("UTF-8","gb2312",$str); //如果程序是gbk的，此行就要注释掉 //判断字符串是否全都是中文
if (preg_match("/^[x7f-xff]/",$str))
{
$fchar=ord($str{0});
if($fchar>=ord("A") and $fchar<=ord("z") )return strtoupper($str{0});
$a = $str;
$val=ord($a{0})*256+ord($a{1})-65536;
if($val>=-20319 and $val<=-20284)return "A";
if($val>=-20283 and $val<=-19776)return "B";
if($val>=-19775 and $val<=-19219)return "C";
if($val>=-19218 and $val<=-18711)return "D";
if($val>=-18710 and $val<=-18527)return "E";
if($val>=-18526 and $val<=-18240)return "F";
if($val>=-18239 and $val<=-17923)return "G";
if($val>=-17922 and $val<=-17418)return "H";
if($val>=-17417 and $val<=-16475)return "J";
if($val>=-16474 and $val<=-16213)return "K";
if($val>=-16212 and $val<=-15641)return "L";
if($val>=-15640 and $val<=-15166)return "M";
if($val>=-15165 and $val<=-14923)return "N";
if($val>=-14922 and $val<=-14915)return "O";
if($val>=-14914 and $val<=-14631)return "P";
if($val>=-14630 and $val<=-14150)return "Q";
if($val>=-14149 and $val<=-14091)return "R";
if($val>=-14090 and $val<=-13319)return "S";
if($val>=-13318 and $val<=-12839)return "T";
if($val>=-12838 and $val<=-12557)return "W";
if($val>=-12556 and $val<=-11848)return "X";
if($val>=-11847 and $val<=-11056)return "Y";
if($val>=-11055 and $val<=-10247)return "Z";
} else
{
return false;
}}
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