(node:3872) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issue

(node:3872) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issue

Nodejs 生成验证码的时候遇到这个问题  查询了半天

发现在新的nodejs 版本中 不在使用  new Buffer();

var imgbase64 = new Buffer(img,'base64');

而是使用 new buffer.from()

var imgbase64 = new Buffer.from(img,'base64');

运行后 问题解决