发送验证码

<blockquote> <p>思路方案：比较发送的验证码跟填写的是否一致，2种方案，1是用缓存，2是用数据库</p> </blockquote> <h4>一、绑定id</h4> <p><img src="https://www.showdoc.cc/server/api/common/visitfile/sign/395162720593dd8b2c7d89b136c23851?showdoc=.jpg" alt="" /></p> <h4>二、点击触发</h4> <p><img src="https://www.showdoc.cc/server/api/common/visitfile/sign/8df994b87654518427b46239b6c33218?showdoc=.jpg" alt="" /></p> <h4>二、js代码</h4> <p><img src="https://www.showdoc.cc/server/api/common/visitfile/sign/3cbead95eb57e4b502f6398c7fa27e82?showdoc=.jpg" alt="" /></p>