超级简单的加密和解密

加密代码

function compileStr(code){ 
    var str = String.fromCharCode(code.charCodeAt(0) + code.length);
    for(let i = 1; i < code.length; i++) {      
        str += String.fromCharCode(code.charCodeAt(i) + code.charCodeAt(i-1));
    }   
   return encodeURIComponent(str);   
}

解密代码

function uncompileStr(code){      
    code = decodeURIComponent(code);      
    var str = String.fromCharCode(code.charCodeAt(0) - code.length);      
    for(let i = 1; i < code.length; i++) {      
        str += String.fromCharCode(code.charCodeAt(i) - str.charCodeAt(i-1));      
    }      
    return str;   
}