egg返回base64图片
//去掉base64的头部分, 转成buffer
const base64 = 'iVBORw0KGgo...==';
const imageBufferData = Buffer.from(base64, 'base64');
ctx.body = imageBufferData;
ctx.response.type = 'image/png';
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//去掉base64的头部分, 转成buffer
const base64 = 'iVBORw0KGgo...==';
const imageBufferData = Buffer.from(base64, 'base64');
ctx.body = imageBufferData;
ctx.response.type = 'image/png';