1.base64加密（包括小写字母a-z、大写字母A-Z、数字0-9、符号"+"、"/"一共64个字符的字符集，另加一个“=”，实际是65个字符）
字符串转换为base64：str64 = window.btoa(str)
base64转换为字符串：str=window.atob(str64)
<script>let str = 'helloworld';let str64 = window.btoa(str);console.log('base64码显示是：' + str64);let jm = window.atob(str64);console.log('字符串显示是：' + jm);</script>
2.md5加密
<script src="/blueimp-md5/2.12.0/js/md5.min.js"></script><script>let str = 'helloworld';let newStr = md5(str);console.log("字符串：",str);console.log("加密后的字符串：",newStr);</script>
3.sha1加密
<script src="/js-sha1/0.6.0/sha1.js"></script><script>let str = 'helloworld_sha1';let newStr = sha1(str);console.log("字符串：",str);console.log("加密后的字符串：",newStr);</script>
4.字符串的编码和解码（JS函数的escape()和unescape()）--对于汉字，数字不适用
<script>let str = '喜羊羊美羊羊懒羊羊';let newStr = escape(str);console.log("字符串：", str);console.log("加密：", newStr);let newStr2 = unescape(newStr)console.log("解密：", newStr2);</script>
5.AES加密
脚手架安装：npm install crypto-js
<script src="/crypto-js/3.1.9-1/crypto-js.min.js"></script><script type="text/javascript">var aseKey = "12345678" //秘钥必须为：8/16/32位var message = "13785624612";//加密var encrypt = CryptoJS.AES.encrypt(message, CryptoJS.enc.Utf8.parse(aseKey), {mode: CryptoJS.mode.ECB,padding: CryptoJS.pad.Pkcs7}).toString();console.log("加密为：",encrypt);//解密var decrypt = CryptoJS.AES.decrypt(encrypt, CryptoJS.enc.Utf8.parse(aseKey), {mode: CryptoJS.mode.ECB,padding: CryptoJS.pad.Pkcs7}).toString(CryptoJS.enc.Utf8);console.log("解密为：",decrypt); //13785624612</script>
