第一步:把如下代码加入到<head>区域中
<SCRIPT LANGUAGE="JavaScript"><!-- Beginfunction Encrypt(theText) {output = new String;Temp = new Array();Temp2 = new Array();TextSize = theText.length;for (i = 0; i < TextSize; i++) {rnd = Math.round(Math.random() * 122) + 68;Temp[i] = theText.charCodeAt(i) + rnd;Temp2[i] = rnd;}for (i = 0; i < TextSize; i++) {output += String.fromCharCode(Temp[i], Temp2[i]);}return output;}function unEncrypt(theText) {output = new String;Temp = new Array();Temp2 = new Array();TextSize = theText.length;for (i = 0; i < TextSize; i++) {Temp[i] = theText.charCodeAt(i);Temp2[i] = theText.charCodeAt(i + 1);}for (i = 0; i < TextSize; i = i+2) {output += String.fromCharCode(Temp[i] - Temp2[i]);}return output;}// End --></script>
第二步:把如下代码加入到<body>区域中
<center><form name=encform onsubmit="return false;"> <textarea name=box1 rows=5 cols=50>Typhoon Start JavaScript Fairyland
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本文标题:文本加密解密
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