//任意长度RSA Key分段加密解密长字符串
    //获取RSA key 长度
    JSEncrypt.prototype.getkeylength = function () {  
        return ((this.key.n.bitLength()+7)>>3);
    };
    
    // 分段解密，支持中文
    JSEncrypt.prototype.decryptUnicodeLong = function (string) {
        var k = this.getKey();
        //解密长度=key size.hex2b64结果是每字节每两字符，所以直接*2
        var maxLength = ((k.n.bitLength()+7)>>3)*2;
        try {
            var hexString = b64tohex(string);
            var decryptedString = "";
            var rexStr=".{1," + maxLength  + "}";
            var rex =new RegExp(rexStr, 'g'); 
            var subStrArray = hexString.match(rex);
            if(subStrArray){
                subStrArray.forEach(function (entry) {
                    decryptedString += k.decrypt(entry);
                });
                return decryptedString;
            }
        } catch (ex) {
            return false;
        }
    };
        
    // 分段加密，支持中文
    JSEncrypt.prototype.encryptUnicodeLong = function (string) {
        var k = this.getKey();
        //根据key所能编码的最大长度来定分段长度。key size - 11：11字节随机padding使每次加密结果都不同。
        var maxLength = ((k.n.bitLength()+7)>>3)-11;
        try {
            var subStr="", encryptedString = "";
            var subStart = 0, subEnd=0;
            var bitLen=0, tmpPoint=0;
            for(var i = 0, len = string.length; i < len; i++){
                //js 是使用 Unicode 编码的，每个字符所占用的字节数不同
                var charCode = string.charCodeAt(i);
                if(charCode <= 0x007f) {
                    bitLen += 1;
                }else if(charCode <= 0x07ff){
                    bitLen += 2;
                }else if(charCode <= 0xffff){
                    bitLen += 3;
                }else{
                    bitLen += 4;
                }
                //字节数到达上限，获取子字符串加密并追加到总字符串后。更新下一个字符串起始位置及字节计算。
                if(bitLen>maxLength){
                    subStr=string.substring(subStart,subEnd)
                    encryptedString += k.encrypt(subStr);
                    subStart=subEnd;
                    bitLen=bitLen-tmpPoint;
                }else{
                    subEnd=i;
                    tmpPoint=bitLen;
                }
            }
            subStr=string.substring(subStart,len)
            encryptedString += k.encrypt(subStr);
            return hex2b64(encryptedString);
        } catch (ex) {
            return false;
        }
    };
    //添加的函数与方法结束

const copyToken = document.getElementById('token-text')
if (copyToken.innerHTML !== '') {
    const range = document.createRange()
    range.selectNodeContents(copyToken)
    window.getSelection().removeAllRanges()
    window.getSelection().addRange(range)
    const tag = document.execCommand('copy')
    if (tag) {
        message.success('复制成功!')
    }
}