node-red中中文转html utf-8 编码
function ConvUtf8(obj) {
return obj.replace(/[^\u0000-\u00FF]/g, function ($0) { return escape($0).replace(/(%u)(\w{4})/gi, "&#x$2;") });
}
msg.payload = ConvUtf8(msg.payload)
return msg;
案例：
image.png
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