如何在javascript中将字母转换为数字？

问题描述

我一直在尝试创建一个简单的javascript程序，在该程序中，用户输入单词/句子，然后该程序显示您要输入的数字以在翻盖手机中输入文字。例如，如果我输入 add，它将输出 122。

I have been trying to create a simple javascript program where the user types in words/sentences, and the program shows the numbers you would enter to text it in a flip phone. For instance, if I entered "add" it would output "122".

我该怎么做？我尝试了很多不同的方法，但没有任何效果。似乎应该是一个简单的程序。您能帮我做到这一点，还是将我链接到类似程序？

How would I do this? I have tried a lot of different things, and nothing works. It seems like it should be a simple program. Can you either help me do this, or link me to a similar program?

谢谢。

推荐答案

 function str2num(mystr) {
   mystr = mystr.toUpperCase();
   var conv = [];
   var l = mystr.length;
   for (var i=0; i conv[i] = mystr.charCodeAt(i)-65;
 }
   return conv;
 }

用于电话转换器

如果链接断开，则代码如下：

in case the link breaks here's the code:

<script language="javascript" type="text/javascript">

<!-- Begin
 function convert(input) {
 var inputlength = input.length;
 input = input.toLowerCase();
 var phonenumber = "";
 for (i = 0; i < inputlength; i++) {
 var character = input.charAt(i);

 switch(character) {
 case '0': phonenumber+="0";break;
 case '1': phonenumber+="1";break;
 case '2': phonenumber+="2";break;
 case '3': phonenumber+="3";break;
 case '4': phonenumber+="4";break;
 case '5': phonenumber+="5";break;
 case '6': phonenumber+="6";break;
 case '7': phonenumber+="7";break;
 case '8': phonenumber+="8";break;
 case '9': phonenumber+="9";break;
 case '-': phonenumber+="-";break;
 case  'a': case 'b': case 'c': phonenumber+="2";break;
 case  'd': case 'e': case 'f': phonenumber+="3";break;
 case  'g': case 'h': case 'i': phonenumber+="4";break;
 case  'j': case 'k': case 'l': phonenumber+="5";break;
 case  'm': case 'n': case 'o': phonenumber+="6";break;
 case  'p': case 'q': case 'r': case 's': phonenumber+="7";break;
 case  't': case 'u': case 'v': phonenumber+="8";break;
 case  'w': case 'x': case 'y': case 'z': phonenumber+="9";break;
}
}
document.myform.number.value = phonenumber;
return true;
}
//  End -->
</script>
<form name=myform>
<table border=0>
<tr>
<td>Alphanumeric #:</td>
<td><input type=text size=20 maxlength=20 name=alphabet value="Rachel"></td>
</tr>
<tr>
<td>Converted #:</td>
<td><input type="text" size=20 maxlength=20 name="number"></td>
</tr>
<tr>
<td align=center colspan=2><input type=button value="Convert" onClick="return    convert(document.myform.alphabet.value)"></td>
</table>
</form>

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