逐行阅读文件 [英] reading file line by line in go

问题描述

我无法在Go中找到 file.ReadLine 函数。我可以想出如何快速写出一个，但只是想知道我是否在这里忽略某些东西。如何逐行读取文件？

解决方案

有函数ReadLine 包含在 bufio 中。

请注意如果该行不适合读取缓冲区，该函数将返回一个不完整的行。如果你想总是通过一次调用函数来读取程序中的整行，那么你需要将 ReadLine 函数封装到你自己的函数中，它调用<$ c
$ b

bufio.ReadString（'\\\
'）

$ c> ReadLine code>不完全等于 ReadLine ，因为 ReadString 无法处理最后一行的文件不会以换行符结束。

I'm unable to find file.ReadLine function in Go. I can figure out how to quickly write one, but just wondering if I'm overlooking something here. How does one read a file line by line?

解决方案

There is function ReadLine in package bufio.

Please note that if the line does not fit into the read buffer, the function will return an incomplete line. If you want to always read a whole line in your program by a single call to a function, you will need to encapsulate the ReadLine function into your own function which calls ReadLine in a for-loop.

bufio.ReadString('\n') isn't fully equivalent to ReadLine because ReadString is unable to handle the case when the last line of a file does not end with the newline character.

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