目录
Base64是什么？
Base64是一种基于64个可打印字符来表示二进制数据的方法。
Base64编码是把二进制转换为可打印字符，Base64编码具有不可读性，需要解码后才能阅读。
Base64可以在Url中传输吗？
标准的Base64不适合直接放在url里传输，因为Base64字符里面含有字符（+ / =）URL编码器会变成%XX的形式，这样经过URL传递后解码可能会出错
所以要在URL中传输Base64的值 就必须把+ / = 替换掉
Base64是加密算法么？
是一种编码方式，不是加密算法，它是没有可读性的，但不代表这个编码就是加密的。加密需要保证没有秘钥的人无法解密信息，更无法从密文中破解任务明文信息，但Base64可以很轻松的反编码。
另外它没有用到秘钥 不具有加密算法的安全性。
Base64的应用场景有哪些？
传输一些稍微敏感的信息，可不用加密，使用Base64简单编码，肉眼安全
有些传输不支持不可见字符的时候，可用Base64转换成可打印的字符来传递
可用于存储图片。但占用空间大，不建议使用
Base64的优点
- 可以将二进制数据转换成可打印字符，方便字符传输
- 可以对数据进行简单的加密，肉眼传输安全；
- 图片显示：将图片转换为Base64编码后，可以直接将编码后的字符串嵌入到HTML或CSS中，从而避免了额外的网络请求，加快页面加载速度。
- 数据传输：在一些需要传输二进制数据的场景中，如WebSocket通信、AJAX请求等，可以将二进制数据转换为Base64编码后进行传输。
- 数据存储：在一些特定的场景中，如浏览器的本地存储（localStorage、IndexedDB）或Cookie中，只能存储文本数据，因此需要将二进制数据转换为Base64编码后进行存储。
Base64的缺点
数据编码后的体积会变大
编码和解码过程需要额外的工作量
关于vue中img无法展示base64位图片的原因分析：
(1)返回不是base64位数据,这个不用多说。
(2)若服务端返回的确实是base64位数据，详细检查一下是否符合规范的base64格式
一次经历，服务端确实返回了base64位的数据如下：
"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"乍一看还真是base64位数据，值也给到了img的src属性中，但是为啥还是不正常显示呢？
其实上述这个并不是标准的base64格式，标准的格式应该是这样的：data:image/png;base64,开头+服务端返回的数据，这样就可以了。标准如下：
data:image/png;base64,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拼接示例如下：
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