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golang文件按行读取 #20

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Vexth opened this issue Apr 4, 2018 · 0 comments

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Vexth commented Apr 4, 2018

Go语言中文件按行读取的方法：

func readsLine(path string, fn func(string)) {
	f, err := os.Open(path)
	if err != nil {
		log.Fatal(err)
	}
	defer f.Close()

	buf := bufio.NewReader(f)
	for {
		line, err := buf.ReadString('\n')
		if err != nil && io.EOF == err {
			break
		}

		fn(line)
	}
}

其中path为要打开文件的路径，fn为操作读取到数据的方法，func(string)为操作方法的类型

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