下面是个简单易学的文本加密解密教程,图老师小编详细图解介绍包你轻松学会,喜欢的朋友赶紧get起来吧!
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第一步:把如下代码加入到head区域中
(本文来源于图老师网站,更多请访问http://www.tulaoshi.com/webkaifa/)SCRIPT LANGUAGE="JavaScript"
!-- Begin
function 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=50Typhoon Start JavaScript Fairyland
来源:http://www.tulaoshi.com/n/20160219/1602242.html