// 對字符串進行加密
function compileStr (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)

}

// 對字符串進行解密

function uncompileStr (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

}