js字符串加解密

// 字符串加密
export function enCode (code) {
    var c=String.fromCharCode(code.charCodeAt(0)+code.length);  
    for(var i=1;i<code.length;i++){        
        c+=String.fromCharCode(code.charCodeAt(i)+code.charCodeAt(i-1));  
    }     
    return escape(c);
}

// 字符串解密
export function deCode(code){
    code = unescape(code);        
    var c=String.fromCharCode(code.charCodeAt(0)-code.length);        
    for(var i=1;i<code.length;i++){        
        c+=String.fromCharCode(code.charCodeAt(i)-c.charCodeAt(i-1));
    }        
    return c;
}