JS实现把汉字转换为拼音

　　用人在知道里面提问，如何用javascript程序把汉字转换为拼音的首字母，帖子地址是：http://zhidao.baidu.com/question/41377061.html

　　我分析一下以后，写了下面的把汉字转换为拼音的程序，但是帖子只要拼音的首字母，所以那里只贴了一个更简单化的版本。

　　程序原理很简单，网上可以找到汉字拼音的数据字典，但是由于大家都知道GB2312编码里面汉字是按拼音排序的，只要知道各个拼音为首的汉字代码，就可以计算所有汉字的拼音代码了。

　　程序有一个关键，就是Javascript对汉字是自动使用unicode编码，为了获取起GB2312的ASCII编码值，我使用了VBSCRIPT来写了两个函数，在JAVASCRIPT程序里面调用VBSCRIPT的函数实现代码转换。

　　完整程序如下（把以下代码保存为一个html文件用IE打开，在汉字栏里面输入内容，光标离开的时候拼音栏就会显示相应的拼音）：

<script language=vbscript>
function vbChr(c)
vbChr = chr(c)
end function

function vbAsc(n)
vbAsc = asc(n)
end function
</script>

<script language=javascript>
var py1=new Array(20319,
20317,
20304,
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20265,
20257,
20242,
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20051,
20036,
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20002,
19990,
19986,
19982,
19976,
19805,
19784,
19775,
19774,
19763,
19756,
19751,
19746,
19741,
19739,
19728,
19725,
19715,
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14941,
14937,
14933,
14929,
14928,
14926,
14930,
14922,
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14914,
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14668,
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14094,
14092,
14090,
14087,
14083,
13917,
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13905,
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13870,
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13611,
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11847,
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11038,
11024,
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10296,
10281,
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10256,
10254,0);
var py2=new Array('a',
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'an',
'ang',
'ao',
'ba',
'bai',
'ban',
'bang',
'bao',
'bei',
'ben',
'beng',
'bi',
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'biao',
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'bin',
'bing',
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'suan',
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'tang',
'tao',
'te',
'teng',
'ti',
'tian',
'tiao',
'tie',
'ting',
'tong',
'tou',
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'tuan',
'tui',
'tun',
'tuo',
'wa',
'wai',
'wan',
'wang',
'wei',
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'weng',
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'wu',
'xi',
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'xiao',
'xie',
'xin',
'xing',
'xiong',
'xiu',
'xu',
'xuan',
'xue',
'xun',
'ya',
'yan',
'yang',
'yao',
'ye',
'yi',
'yin',
'ying',
'yo',
'yong',
'you',
'yu',
'yuan',
'yue',
'yun',
'za',
'zai',
'zan',
'zang',
'zao',
'ze',
'zei',
'zen',
'zeng',
'zha',
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'zhan',
'zhang',
'zhao',
'zhe',
'zhen',
'zheng',
'zhi',
'zhong',
'zhou',
'zhu',
'zhua',
'zhuai',
'zhuan',
'zhuang',
'zhui',
'zhun',
'zhuo',
'zi',
'zong',
'zou',
'zu',
'zuan',
'zui',
'zun',
'zuo','');
function getPinYin(index){
var i;
if(index==0x1534) return 'yan';
if(index>0x4F5F||index<0x2807) return '';
i=0;while(py1[i]>=index)i++;
return py2[i-1];
}
function pinyin(s){
var i,s2='';
for (i=0;i<s.length;i++)s2+=getPinYin(0-vbAsc(s.charAt(i)));
return s2;
}
</script>

<form name=frm>
汉字：<input type=text name=s SIZE=120 onchange="javascript:document.frm.p.value=pinyin(this.value);"><BR>
拼音：<input type=text name=p SIZE=120 readonly>
</form>

评论

2 楼 Jefurry 2015-01-13  

额，貌似是跟65536相减

1 楼 Jefurry 2015-01-13  

请教一下，py1数组元素中的数字是如何算出来的？

var py1=new Array(20319,
20317,
20304,
20295,
20292, ...);

谢谢~