// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn . package readers import ( "io" "log" ) type PrintReader struct { rawReader io.Reader tag string } func NewPrintReader(rawReader io.Reader, tag string) io.Reader { return &PrintReader{ rawReader: rawReader, tag: tag, } } func (this *PrintReader) Read(p []byte) (n int, err error) { n, err = this.rawReader.Read(p) if n > 0 { log.Println("[" + this.tag + "]" + string(p[:n])) } return }