要完成此效果需要两个步骤 第一步：把如下代码加入到<head>区域中 <SCRIPT LANGUAGE="JavaScript"> <!-- Begin function translate(form) { letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ .,?:-!"; morse = new Array( ".-","-...","-.-.","-..",".","..-.", "--.","....","..",".---","-.-",".-..", "--","-.","---",".--.","--.-",".-.", "...","-","..-","...-",".--","-..-", "-.--","--..",".-","-...","-.-.","-..", ".","..-.","--.","....","..",".---", "-.-",".-..","--","-.","---",".--.", "--.-",".-.","...","-","..-","...-", ".--","-..-","-.--","--.."," ",".-.-.-", "--..--","..--..","---...","-....-","!"); form.output.value = ""; var input = form.input.value; output = ""; for(count = 0; count < input.length; count++) { daChar = input.charAt(count); for (i = 0; i < letters.length; i++) { if (daChar == letters.charAt(i)) { output += morse[i]; break; } } } form.output.value = output; } // End --> </script> 第二步：把如下代码加入到<body>区域中 <center> <form> <table> <tr> <td align=center> <textarea name=input cols=50 rows=4 wrap=physical></textarea> </td> </tr> <tr> <td align=center> <input type=button value="Morse 电码转换" onClick="javascript:translate(this.form)"> </td> </tr> <tr> <td align=center> <textarea name=output cols=50 rows=4 wrap=physical></textarea> </td> </tr> </table> </form> </center> 载入中... 载入中...
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