英文:
How can I close bufio.Reader/Writer in golang?
问题
我应该如何关闭bufio.Reader或bufio.Writer在golang中？
func init(){
file,_ := os.Create("result.txt")
writer = bufio.NewWriter(file)
}
我应该关闭Writer吗？还是只需要使用file.Close()就会关闭Writer？
英文:
How can I close bufio.Reader or bufio.Writer in golang?
func init(){
file,_ := os.Create("result.txt")
writer = bufio.NewWriter(file)
}
Should I close Writer? or just use file.Close() will make Writer close?
答案1
得分: 23
据我所知，你不能关闭bufio.Writer。
你需要做的是先调用Flush()方法刷新bufio.Writer，然后再调用Close()方法关闭os.Writer：
writer.Flush()
file.Close()
英文:
As far as I know, you can't close the bufio.Writer.
What you do is to Flush() the bufio.Writer and then Close() the os.Writer:
writer.Flush()
file.Close()
答案2
得分: 3
我认为以下是规范的：
func doSomething(filename string){
file, err := os.Create(filename)
// 检查错误
defer file.Close()
writer = bufio.NewWriter(file)
defer writer.Flush()
// 在这里使用 writer
}
英文:
I think the following is canonical:
func doSomething(filename string){
file, err := os.Create(filename)
// check err
defer file.Close()
writer = bufio.NewWriter(file)
defer writer.Flush()
// use writer here
}
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