golang读取文本文件（转）

一般文件比较小的话可以将文件全部读入内存中,然后转换成string再按行分割一下：

func GetFileContentAsStringLines(filePath string) ([]string, error) {
    logger.Infof("get file content as lines: %v", filePath)
    result := []string{}
    b, err := ioutil.ReadFile(filePath)
    if err != nil {
        logger.Errorf("read file: %v error: %v", filePath, err)
        return result, err
    }
    s := string(b)
    for _, lineStr := range strings.Split(s, "\n") {
        lineStr = strings.TrimSpace(lineStr)
        if lineStr == "" {
            continue
        }
        result = append(result, lineStr)
    }
    logger.Infof("get file content as lines: %v, size: %v", filePath, len(result))
    return result, nil
}

原文：https://blog.csdn.net/xielingyun/article/details/50324423